Update dependency bazel_skylib to v1.2.1

Author: renovate[bot]

helm/repositories.bzl

@@ -19,10 +19,10 @@ def rules_helm_dependencies():
     maybe(
         http_archive,
         name = "bazel_skylib",
-        sha256 = "c6966ec828da198c5d9adbaa94c05e3a1c7f21bd012a0b29ba8ddbccb2c93b0d",
+        sha256 = "f7be3474d42aae265405a592bb7da8e171919d74c16f082a5457840f06054728",
         urls = [
-            "https://github.com/bazelbuild/bazel-skylib/releases/download/1.1.1/bazel-skylib-1.1.1.tar.gz",
-            "https://mirror.bazel.build/github.com/bazelbuild/bazel-skylib/releases/download/1.1.1/bazel-skylib-1.1.1.tar.gz",
+            "https://github.com/bazelbuild/bazel-skylib/releases/download/1.2.1/bazel-skylib-1.2.1.tar.gz",
+            "https://mirror.bazel.build/github.com/bazelbuild/bazel-skylib/releases/download/1.2.1/bazel-skylib-1.2.1.tar.gz",
         ],
     )
     maybe(

internal_deps.bzl

@@ -35,11 +35,11 @@ def rules_helm_internal_deps():
     maybe(
         http_archive,
         name = "bazel_skylib",
-        sha256 = "07b4117379dde7ab382345c3b0f5edfc6b7cff6c93756eac63da121e0bbcc5de",
-        strip_prefix = "bazel-skylib-1.1.1",
+        sha256 = "710c2ca4b4d46250cdce2bf8f5aa76ea1f0cba514ab368f2988f70e864cfaf51",
+        strip_prefix = "bazel-skylib-1.2.1",
         urls = [
-            "https://github.com/bazelbuild/bazel-skylib/archive/1.1.1.tar.gz",
-            "https://mirror.bazel.build/github.com/bazelbuild/bazel-skylib/archive/1.1.1.tar.gz",
+            "https://github.com/bazelbuild/bazel-skylib/archive/1.2.1.tar.gz",
+            "https://mirror.bazel.build/github.com/bazelbuild/bazel-skylib/archive/1.2.1.tar.gz",
         ],
     )