chore: Update rust and rules_rust version

[cameron-martin]

No description provided.

[hauserx]

Consider maybe upgrading bazel version to 8 as well in .bazelversion.

[hauserx]

Oh, I see rules_rust had issues with bazel 8, so maybe not yet - bazelbuild/rules_rust#3076

[cameron-martin]

It looks like for us, it fails on something not related to rules_rust:

ERROR: /home/cameron/Repos/bazel-lsp/src/builtin/BUILD:17:8: Executing genrule //src/builtin:default_build_language_pbtxt_to_pb failed: (Exit 1): bash failed: error executing Genrule command (from target //src/builtin:default_build_language_pbtxt_to_pb) /bin/bash -c ... (remaining 1 argument skipped)

Use --sandbox_debug to see verbose messages from the sandbox and retain the sandbox build root for debugging
src/main/protobuf/build.proto: Import "src/main/protobuf/stardoc_output.proto" was not found or had errors.
src/main/protobuf/build.proto: ".stardoc_output.RuleInfo" is not defined.
Type not defined: blaze_query.BuildLanguage
Use --verbose_failures to see the command lines of failed build steps.
INFO: Elapsed time: 90.735s, Critical Path: 34.09s
INFO: 681 processes: 231 internal, 450 linux-sandbox.

I've added renovate to try to get dependencies auto-updated, but it unfortunately does not update the MODULE.bazel.lock, even when updating bazel modules.