Bug: "invalid path" with Bazel 8

[mering]

In Bazel 8, the repo paths on disk change from repo~ to repo+. This can already be tested in Bazel 7 with --incompatible_use_plus_in_repo_names (bazelbuild/bazel#23127). Similar to #588, image creation fails with

invalid reference, invalid path for scheme "ocidir": bazel-out/k8-fastbuild/bin/external/repo+/package/test-image:intermediate

[mering]

Requires regclient/regclient#856 (merged).

[mering]

@alexeagle could you PTAL? Thanks.

[thesayyn]

We need a new version of regctl before we can fix anything here, until then the flag can be flipped to use ~ instead.

[keith]

Note that the flag is a no-op in 8.x, so it's not possible to flip back

[sudo-bmitch]

regclient just released. Hopefully that unblocks you. https://github.com/regclient/regclient/releases/tag/v0.8.0

[thesayyn]

Thank you friend :)