[CI] shorten ci name (#434)

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.github/workflows/amd-ci.yml

@@ -1,4 +1,4 @@
-name: AMD GPU CI
+name: AMD GPU
 
 on:
   push:

.github/workflows/nvi-ci.yml

@@ -1,4 +1,4 @@
-name: NVIDIA GPU CI
+name: NVIDIA GPU
 
 on:
   push: