build(deps): bump log4js from 6.3.0 to 6.9.1

Bumps [log4js](https://github.com/log4js-node/log4js-node) from 6.3.0 to 6.9.1.
- [Release notes](https://github.com/log4js-node/log4js-node/releases)
- [Changelog](https://github.com/log4js-node/log4js-node/blob/master/CHANGELOG.md)
- [Commits](log4js-node/log4js-node@v6.3.0...v6.9.1)

---
updated-dependencies:
- dependency-name: log4js
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>

yarn.lock

@@ -2675,15 +2675,10 @@ dargs@^4.0.1:
   dependencies:
     number-is-nan "^1.0.0"
 
-date-format@^2.1.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/date-format/-/date-format-2.1.0.tgz#31d5b5ea211cf5fd764cd38baf9d033df7e125cf"
-  integrity sha512-bYQuGLeFxhkxNOF3rcMtiZxvCBAquGzZm6oWA1oZ0g2THUzivaRhv8uOhdr19LmoobSOLoIAxeUK2RdbM8IFTA==
-
-date-format@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/date-format/-/date-format-3.0.0.tgz#eb8780365c7d2b1511078fb491e6479780f3ad95"
-  integrity sha512-eyTcpKOcamdhWJXj56DpQMo1ylSQpcGtGKXcU0Tb97+K56/CF5amAqqqNj0+KvA0iw2ynxtHWFsPDSClCxe48w==
+date-format@^4.0.14:
+  version "4.0.14"
+  resolved "https://registry.yarnpkg.com/date-format/-/date-format-4.0.14.tgz#7a8e584434fb169a521c8b7aa481f355810d9400"
+  integrity sha512-39BOQLs9ZjKh0/patS9nrT8wc3ioX3/eA/zgbKNopnF2wCqJEoxywwwElATYvRsXdnOxA/OQeQoFZ3rFjVajhg==
 
 dateformat@^3.0.0:
   version "3.0.3"
@@ -2711,6 +2706,13 @@ debug@^4.0.1, debug@^4.1.0, debug@^4.1.1, debug@~4.1.0:
   dependencies:
     ms "^2.1.1"
 
+debug@^4.3.4:
+  version "4.3.4"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-4.3.4.tgz#1319f6579357f2338d3337d2cdd4914bb5dcc865"
+  integrity sha512-PRWFHuSU3eDtQJPvnNY7Jcket1j0t5OuOsFzPPzsekD52Zl8qUfFIPEiswXqIvHWGVHOgX+7G/vCNNhehwxfkQ==
+  dependencies:
+    ms "2.1.2"
+
 debug@~3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/debug/-/debug-3.1.0.tgz#5bb5a0672628b64149566ba16819e61518c67261"
@@ -3689,11 +3691,16 @@ flat@^4.1.0:
   dependencies:
     is-buffer "~2.0.3"
 
-flatted@^2.0.0, flatted@^2.0.1, flatted@^2.0.2:
+flatted@^2.0.0, flatted@^2.0.2:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/flatted/-/flatted-2.0.2.tgz#4575b21e2bcee7434aa9be662f4b7b5f9c2b5138"
   integrity sha512-r5wGx7YeOwNWNlCA0wQ86zKyDLMQr+/RB8xy74M4hTphfmjlijTSSXGuH8rnvKZnfT9i+75zmd8jcKdMR4O6jA==
 
+flatted@^3.2.7:
+  version "3.2.7"
+  resolved "https://registry.yarnpkg.com/flatted/-/flatted-3.2.7.tgz#609f39207cb614b89d0765b477cb2d437fbf9787"
+  integrity sha512-5nqDSxl8nn5BSNxyR3n4I6eDmbolI6WT+QqR547RwxQapgjQBmtktdP+HTBb/a/zLsbzERTONyUB5pefh5TtjQ==
+
 flow-bin@^0.129.0:
   version "0.129.0"
   resolved "https://registry.yarnpkg.com/flow-bin/-/flow-bin-0.129.0.tgz#50294d6e335dd97d095c27b096ea0b94c2415d55"
@@ -5360,15 +5367,15 @@ log-update@^4.0.0:
     wrap-ansi "^6.2.0"
 
 log4js@^6.2.1:
-  version "6.3.0"
-  resolved "https://registry.yarnpkg.com/log4js/-/log4js-6.3.0.tgz#10dfafbb434351a3e30277a00b9879446f715bcb"
-  integrity sha512-Mc8jNuSFImQUIateBFwdOQcmC6Q5maU0VVvdC2R6XMb66/VnT+7WS4D/0EeNMZu1YODmJe5NIn2XftCzEocUgw==
+  version "6.9.1"
+  resolved "https://registry.yarnpkg.com/log4js/-/log4js-6.9.1.tgz#aba5a3ff4e7872ae34f8b4c533706753709e38b6"
+  integrity sha512-1somDdy9sChrr9/f4UlzhdaGfDR2c/SaD2a4T7qEkG4jTS57/B3qmnjLYePwQ8cqWnUHZI0iAKxMBpCZICiZ2g==
   dependencies:
-    date-format "^3.0.0"
-    debug "^4.1.1"
-    flatted "^2.0.1"
-    rfdc "^1.1.4"
-    streamroller "^2.2.4"
+    date-format "^4.0.14"
+    debug "^4.3.4"
+    flatted "^3.2.7"
+    rfdc "^1.3.0"
+    streamroller "^3.1.5"
 
 loglevel@^1.6.8:
   version "1.6.8"
@@ -7095,10 +7102,10 @@ retry@^0.12.0:
   resolved "https://registry.yarnpkg.com/retry/-/retry-0.12.0.tgz#1b42a6266a21f07421d1b0b54b7dc167b01c013b"
   integrity sha1-G0KmJmoh8HQh0bC1S33BZ7AcATs=
 
-rfdc@^1.1.4:
-  version "1.1.4"
-  resolved "https://registry.yarnpkg.com/rfdc/-/rfdc-1.1.4.tgz#ba72cc1367a0ccd9cf81a870b3b58bd3ad07f8c2"
-  integrity sha512-5C9HXdzK8EAqN7JDif30jqsBzavB7wLpaubisuQIGHWf2gUXSpzy6ArX/+Da8RjFpagWsCn+pIgxTMAmKw9Zug==
+rfdc@^1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/rfdc/-/rfdc-1.3.0.tgz#d0b7c441ab2720d05dc4cf26e01c89631d9da08b"
+  integrity sha512-V2hovdzFbOi77/WajaSMXk2OLm+xNIeQdMMuB7icj7bk6zi2F8GGAxigcnDFpJHbNyNcgyJDiP+8nOrY5cZGrA==
 
 [email protected]:
   version "2.6.3"
@@ -7754,13 +7761,13 @@ stream-shift@^1.0.0:
   resolved "https://registry.yarnpkg.com/stream-shift/-/stream-shift-1.0.1.tgz#d7088281559ab2778424279b0877da3c392d5a3d"
   integrity sha512-AiisoFqQ0vbGcZgQPY1cdP2I76glaVA/RauYR4G4thNFgkTqr90yXTo4LYX60Jl+sIlPNHHdGSwo01AvbKUSVQ==
 
-streamroller@^2.2.4:
-  version "2.2.4"
-  resolved "https://registry.yarnpkg.com/streamroller/-/streamroller-2.2.4.tgz#c198ced42db94086a6193608187ce80a5f2b0e53"
-  integrity sha512-OG79qm3AujAM9ImoqgWEY1xG4HX+Lw+yY6qZj9R1K2mhF5bEmQ849wvrb+4vt4jLMLzwXttJlQbOdPOQVRv7DQ==
+streamroller@^3.1.5:
+  version "3.1.5"
+  resolved "https://registry.yarnpkg.com/streamroller/-/streamroller-3.1.5.tgz#1263182329a45def1ffaef58d31b15d13d2ee7ff"
+  integrity sha512-KFxaM7XT+irxvdqSP1LGLgNWbYN7ay5owZ3r/8t77p+EtSUAfUgtl7be3xtqtOmGUl9K9YPO2ca8133RlTjvKw==
   dependencies:
-    date-format "^2.1.0"
-    debug "^4.1.1"
+    date-format "^4.0.14"
+    debug "^4.3.4"
     fs-extra "^8.1.0"
 
 strict-uri-encode@^1.0.0: