feat: upgrade datafusion to 44.0 (#3341)

I wanted to upgrade to 44 to check and see if the string sorting bug was
fixed. It wasn't. However, it might still be useful to commit this since
we'll need to upgrade at some point.

Cargo.toml

@@ -95,20 +95,18 @@ criterion = { version = "0.5", features = [
     "html_reports",
 ] }
 crossbeam-queue = "0.3"
-datafusion = { version = "42.0", default-features = false, features = [
+datafusion = { version = "44.0", default-features = false, features = [
     "nested_expressions",
     "regex_expressions",
     "unicode_expressions",
 ] }
-datafusion-common = "42.0"
-datafusion-functions = { version = "42.0", features = ["regex_expressions"] }
-datafusion-sql = "42.0"
-datafusion-expr = "42.0"
-datafusion-execution = "42.0"
-datafusion-optimizer = "42.0"
-datafusion-physical-expr = { version = "42.0", features = [
-    "regex_expressions",
-] }
+datafusion-common = "44.0"
+datafusion-functions = { version = "44.0", features = ["regex_expressions"] }
+datafusion-sql = "44.0"
+datafusion-expr = "44.0"
+datafusion-execution = "44.0"
+datafusion-optimizer = "44.0"
+datafusion-physical-expr = { version = "44.0" }
 deepsize = "0.2.0"
 dirs = "5.0.0"
 either = "1.0"