Fix permission of PATH

https://github.com/ruby/actions/runs/608526685?check_suite_focus=true
`warning: Insecure world writable dir /home/runner/.config in PATH, mode 040777`

.github/workflows/mjit.yml

@@ -33,8 +33,9 @@ jobs:
         id: commit_info
       - name: Fixed world writable dirs
         run: |
-          chmod go-w $HOME
+          chmod -v go-w $HOME $HOME/.config
           sudo chmod -R go-w /usr/share
+          sudo bash -c 'IFS=:; for d in '"$PATH"'; do chmod -v go-w $d; done' || :
       - name: Set ENV
         run: |
           echo '::set-env name=JOBS::'-j$((1 + $(nproc --all)))

.github/workflows/ubuntu.yml

@@ -39,8 +39,9 @@ jobs:
         id: commit_info
       - name: Fixed world writable dirs
         run: |
-          chmod go-w $HOME
+          chmod -v go-w $HOME $HOME/.config
           sudo chmod -R go-w /usr/share
+          sudo bash -c 'IFS=:; for d in '"$PATH"'; do chmod -v go-w $d; done' || :
       - name: Set ENV
         run: |
           echo '::set-env name=JOBS::'-j$((1 + $(nproc --all)))