grep for todo! and dbg! in check_commands and in CI

.gitea/workflows/gentoo-utils.yml

@@ -165,5 +165,5 @@ jobs:
 
       - name: grep for patterns
         run: |
-          egrep 'todo!|dbg!' -qvr src
+          git grep 'todo!|dbg!' && exit 1
 

check_commands.txt

@@ -3,4 +3,4 @@ ninja rustfmt -C build
 ninja rustdoc -C build
 ninja clippy -C build
 ninja test -C build
-egrep 'todo!|dbg!' -qvr src
+egrep 'todo!|dbg!' $(find src -type f -name '*.rs') && return 1