feat: initial implementation of `bazel-module` manager (#21893)

lib/modules/manager/api.ts

lib/modules/manager/bazel-module/bazel-dep.spec.ts

lib/modules/manager/bazel-module/bazel-dep.ts

lib/modules/manager/bazel-module/context.spec.ts

lib/modules/manager/bazel-module/context.ts

lib/modules/manager/bazel-module/extract.spec.ts

lib/modules/manager/bazel-module/extract.ts

lib/modules/manager/bazel-module/fragments.spec.ts

lib/modules/manager/bazel-module/fragments.ts

lib/modules/manager/bazel-module/index.ts

lib/modules/manager/bazel-module/parser.spec.ts

lib/modules/manager/bazel-module/parser.ts

lib/modules/manager/bazel-module/readme.md

lib/modules/manager/bazel-module/starlark.spec.ts

lib/modules/manager/bazel-module/starlark.ts