Update dependency bazel_gazelle to v0.39.0

Author: renovate[bot]

WORKSPACE

@@ -31,10 +31,10 @@ http_archive(
 
 http_archive(
     name = "bazel_gazelle",
-    sha256 = "75df288c4b31c81eb50f51e2e14f4763cb7548daae126817247064637fd9ea62",
+    sha256 = "2c7545cc914a411e5c15c3d55a0a5ed34fbff62def0e1f0ab6ed14bda222c3cc",
     urls = [
-        "https://mirror.bazel.build/github.com/bazelbuild/bazel-gazelle/releases/download/v0.36.0/bazel-gazelle-v0.36.0.tar.gz",
-        "https://github.com/bazelbuild/bazel-gazelle/releases/download/v0.36.0/bazel-gazelle-v0.36.0.tar.gz",
+        "https://mirror.bazel.build/github.com/bazelbuild/bazel-gazelle/releases/download/v0.39.0/bazel-gazelle-v0.39.0.tar.gz",
+        "https://github.com/bazelbuild/bazel-gazelle/releases/download/v0.39.0/bazel-gazelle-v0.39.0.tar.gz",
     ],
 )