Force GitHub format so ruff auto-annotates

.github/workflows/codespell-private.yml

diff --git a/.github/workflows/codespell-private.yml b/.github/workflows/codespell-private.yml
index f6cda80..b0dd6b6 100644
--- a/.github/workflows/codespell-private.yml
+++ b/.github/workflows/codespell-private.yml
@@ -12,6 +12,7 @@
   test:
     env:
       REQUIRE_ASPELL: true
+      RUFF_FORMAT: github
     # Make sure we're using the latest aspell dictionary
     runs-on: ubuntu-22.04
     strategy:
@@ -75,6 +76,8 @@
       - run: make check-dictionaries
 
   ruff-annotation:
+    env:
+      RUFF_FORMAT: github
     runs-on: ubuntu-latest
     steps:
       - name: Setup python