WIP: Bzlmod part the one hundred thirty-fifth

Update tests for Bazel 6 + Bzlmod

Copied the regular expression used to optionally match canonical repo
name prefixes in `buildozer` commands from bazelbuild#1622. These never failed
when building with Bzlmod and Bazel 7.4.1, but did under Bazel 6.5.0.

test/shell/test_scala_library.sh

@@ -59,14 +59,14 @@ test_scala_library_expect_failure_on_missing_direct_internal_deps() {
 }
 
 test_scala_library_expect_failure_on_missing_direct_external_deps_jar() {
-  dependenecy_target='@com_google_guava_guava_21_0//:com_google_guava_guava_21_0'
+  dependenecy_target='@[a-z_.~+-]*com_google_guava_guava_21_0//:com_google_guava_guava_21_0'
   test_target='test_expect_failure/missing_direct_deps/external_deps:transitive_external_dependency_user'
 
   test_scala_library_expect_failure_on_missing_direct_deps $dependenecy_target $test_target
 }
 
 test_scala_library_expect_failure_on_missing_direct_external_deps_file_group() {
-  dependenecy_target='@com_google_guava_guava_21_0_with_file//:com_google_guava_guava_21_0_with_file'
+  dependenecy_target='@[a-z_.~+-]*com_google_guava_guava_21_0_with_file//:com_google_guava_guava_21_0_with_file'
   test_target='test_expect_failure/missing_direct_deps/external_deps:transitive_external_dependency_user_file_group'
 
   test_scala_library_expect_failure_on_missing_direct_deps $dependenecy_target $test_target

test/shell/test_strict_dependency.sh

@@ -60,7 +60,7 @@ test_strict_deps_filter_excluded_target() {
 
 test_strict_deps_filter_included_target() {
   local test_target="//test_expect_failure/missing_direct_deps/filtering:b"
-  local expected_message="buildozer 'add deps @com_google_guava_guava_21_0//:com_google_guava_guava_21_0' ${test_target}"
+  local expected_message="buildozer 'add deps @[a-z_.~+-]*com_google_guava_guava_21_0//:com_google_guava_guava_21_0' ${test_target}"
 
   test_expect_failure_or_warning_on_missing_direct_deps_with_expected_message \
     "${expected_message}" ${test_target} \

test/shell/test_unused_dependency.sh

@@ -79,7 +79,7 @@ test_unused_deps_filter_excluded_target() {
 
 test_unused_deps_filter_included_target() {
   local test_target="//test_expect_failure/unused_dependency_checker/filtering:b"
-  local expected_message="buildozer 'remove deps @com_google_guava_guava_21_0//:com_google_guava_guava_21_0' ${test_target}"
+  local expected_message="buildozer 'remove deps @[a-z_.~+-]*com_google_guava_guava_21_0//:com_google_guava_guava_21_0' ${test_target}"
 
   test_expect_failure_or_warning_on_missing_direct_deps_with_expected_message \
     "${expected_message}" ${test_target} \