chore: Use GoogleTest 1.12.1

Author: gjasny

bazel/repositories.bzl

@@ -16,10 +16,10 @@ def prometheus_cpp_repositories():
     maybe(
         http_archive,
         name = "com_google_googletest",
-        sha256 = "b4870bf121ff7795ba20d20bcdd8627b8e088f2d1dab299a031c1034eddc93d5",
-        strip_prefix = "googletest-release-1.11.0",
+        sha256 = "81964fe578e9bd7c94dfdb09c8e4d6e6759e19967e397dbea48d1c10e45d0df2",
+        strip_prefix = "googletest-release-1.12.1",
         urls = [
-            "https://github.com/google/googletest/archive/release-1.11.0.tar.gz",
+            "https://github.com/google/googletest/archive/release-1.12.1.tar.gz",
         ],
     )