[bazel] Bump rules_jvm_external to 6.8

Author: shs96c

MODULE.bazel

@@ -19,7 +19,7 @@ bazel_dep(name = "rules_cc", version = "0.2.0", dev_dependency = True)
 
 bazel_dep(name = "rules_dotnet", version = "0.17.5")
 bazel_dep(name = "rules_java", version = "8.7.1")
-bazel_dep(name = "rules_jvm_external", version = "6.6")
+bazel_dep(name = "rules_jvm_external", version = "6.8")
 bazel_dep(name = "rules_multitool", version = "1.3.0")
 bazel_dep(name = "rules_nodejs", version = "6.3.2")
 bazel_dep(name = "rules_oci", version = "1.8.0")
@@ -29,12 +29,10 @@ bazel_dep(name = "rules_proto", version = "7.0.2")
 bazel_dep(name = "rules_ruby", version = "0.19.0")
 
 # Until `rules_jvm_external` 6.8 ships
-git_override(
+single_version_override(
     module_name = "rules_jvm_external",
-    commit = "aca619b117c1fe306ffdd20c5f47cc4dbd5effed",
     patch_strip = 1,
     patches = ["//java:rules_jvm_external_javadoc.patch"],
-    remote = "https://github.com/bazel-contrib/rules_jvm_external.git",
 )
 
 multitool = use_extension("@rules_multitool//multitool:extension.bzl", "multitool")