Fix dangling symbolic link error

[curtismuntz]

I'm getting a build error on master attempting to build example/...:

❯ bazel build example/...
INFO: Analyzed 16 targets (0 packages loaded, 0 targets configured).
ERROR: /home/user/code/rule_oci_bundle/example/BUILD.bazel:26:11: error while validating output tree artifact example/bundle: child blobs/sha256/da1f367b9b83905089e31bd02bafdac6e406df391cb49fea7c23c8a2e8461520 is a dangling symbolic link
ERROR: /home/user/code/rule_oci_bundle/example/BUILD.bazel:26:11: OCI Bundle //example:bundle failed: not all outputs were created or valid
Use --verbose_failures to see the command lines of failed build steps.
INFO: Elapsed time: 0.103s, Critical Path: 0.04s
INFO: 3 processes: 2 internal, 1 linux-sandbox.
ERROR: Build did NOT complete successfully

Looking upstream, I discovered this PR in rules_oci: bazel-contrib/rules_oci#525

For what it's worth, I'm compiling your project using

❯ bazel version
Bazelisk version: v1.19.0
Build label: 7.1.2
Build target: @@//src/main/java/com/google/devtools/build/lib/bazel:BazelServer
Build time: Wed May 8 20:49:55 2024 (1715201395)
Build timestamp: 1715201395
Build timestamp as int: 1715201395

[curtismuntz]

I tested your project on bazel 5.4 and 6.2, both of which succeeded successfully. This might just be a problem with bazel 7.x

[hunshcn]

Right, due to bazelbuild/bazel#19915

It breaks on bazel 7.x