ci: show_build_failures: fix missing output for configure failures

We're currently missing log output in cases where `configure` fails
which returns 77 as its error code:

 make[3]: *** [Makefile:118: elfutils-0.188/.configured_889556d2f423f99e091beece9c8d870a] Error 77

So lets adjust the regexps so they can handle multiple digits.

Signed-off-by: Petr Štetiar <[email protected]>

.github/workflows/scripts/show_build_failures.sh

@@ -5,9 +5,9 @@ log_dir_path="${1:-logs}"
 context="${2:-10}"
 
 show_make_build_errors() {
-	grep -slr 'make\[[[:digit:]]\].*Error [[:digit:]]$' "$log_dir_path" | while IFS= read -r log_file; do
+	grep -slr 'make\[[[:digit:]]\+\].*Error [[:digit:]]\+$' "$log_dir_path" | while IFS= read -r log_file; do
 		printf "====== Make errors from %s ======\n" "$log_file";
-		grep -r -C"$context" 'make\[[[:digit:]]\].*Error [[:digit:]]$' "$log_file" ;
+		grep -r -C"$context" 'make\[[[:digit:]]\+\].*Error [[:digit:]]\+$' "$log_file" ;
 	done
 }