Extend bats test for new debian versions

Debian testing started using different quotes in the generated configure
scripts.

Co-authored-by: Tobias Werth <spam-by-github@never-mind.eu>
(cherry picked from commit c53ccda)

.github/jobs/configure-checks/all.bats

@@ -67,9 +67,9 @@ repo-remove () {
     assert_line "checking for gcc... no"
     assert_line "checking for cc... no"
     assert_line "checking for cl.exe... no"
-    assert_line "configure: error: in \`${test_path}':"
+    assert_regex "configure: error: in .${test_path}':"
     assert_line 'configure: error: no acceptable C compiler found in $PATH'
-    assert_line "See \`config.log' for more details"
+    assert_regex "See [\`']config.log' for more details"
 }
 
 compiler_assertions () {