Clean up bazelbuild org references (#291)

.bcr/metadata.template.json

diff --git a/.bcr/metadata.template.json b/.bcr/metadata.template.json
index 9d2df38..11b657f 100644
--- a/.bcr/metadata.template.json
+++ b/.bcr/metadata.template.json
@@ -1,5 +1,5 @@
 {
-  "homepage": "https://github.com/bazelbuild/rules_fuzzing",
+  "homepage": "https://github.com/bazel-contrib/rules_fuzzing",
   "maintainers": [
     {
       "email": "fabian@meumertzhe.im",
@@ -13,7 +13,8 @@
     }
   ],
   "repository": [
-      "github:bazelbuild/rules_fuzzing"
+      "github:bazelbuild/rules_fuzzing",
+      "github:bazel-contrib/rules_fuzzing"
   ],
   "versions": [],
   "yanked_versions": {}

.github/workflows/release_prep.sh

diff --git a/.github/workflows/release_prep.sh b/.github/workflows/release_prep.sh
index 44cd7cf..315ca8f 100755
--- a/.github/workflows/release_prep.sh
+++ b/.github/workflows/release_prep.sh
@@ -32,7 +32,7 @@
     name = "rules_fuzzing",
     sha256 = "${SHA}",
     strip_prefix = "${PREFIX}",
-    url = "https://github.com/bazelbuild/rules_fuzzing/releases/download/${TAG}/${ARCHIVE}",
+    url = "https://github.com/bazel-contrib/rules_fuzzing/releases/download/${TAG}/${ARCHIVE}",
 )
 
 load("@rules_fuzzing//fuzzing:repositories.bzl", "rules_fuzzing_dependencies")