Remove superfluous $ added helpfully by code.

Author: MirahImage

.github/workflows/build-test-publish.yml

@@ -367,7 +367,7 @@ jobs:
   examples_matrix:
     runs-on: ubuntu-latest
     outputs:
-      examples_matrix: $${{ steps.list_examples.outputs.examples_matrix }}
+      examples_matrix: ${{ steps.list_examples.outputs.examples_matrix }}
     steps:
     - name: Check out code
       uses: actions/checkout@v5
@@ -376,7 +376,7 @@ jobs:
       id: list_examples
       run: |
         echo -n 'examples_matrix=' >> $GITHUB_OUTPUT
-        find "$PWD" -mindepth 1 -type d | jq -R -s -c 'split("\n") | map(select(length > 0))' >> $GITHUB_OUTPUT
+        find "$PWD/docs/examples" -mindepth 1 -type d | jq -R -s -c 'split("\n") | map(select(length > 0))' >> $GITHUB_OUTPUT
 
   test_doc_examples:
     name: Documented example tests