CI: adding logic for force_run:all_tests label

Author: bsipocz

tox.ini

@@ -12,7 +12,7 @@ setenv =
     FIREFLY_URL = https://irsa.ipac.caltech.edu/irsaviewer # fallback url for firefly notebooks if not defined in code
     devdeps: PIP_EXTRA_INDEX_URL =  https://pypi.anaconda.org/scientific-python-nightly-wheels/simple https://pypi.anaconda.org/astropy/simple
 
-passenv = CI, CIRCLECI, GITHUB_EVENT_NAME
+passenv = CI, CIRCLECI, GITHUB_EVENT_NAME, GITHUB_EVENT_PATH
 
 deps =
     # We use these files to specify all the dependencies, and below we override
@@ -53,7 +53,7 @@ commands =
     !buildhtml: bash -c 'if [[ $CI == true ]]; then cat ignore_gha_testing >> ignore_testing; fi'
 
     # We only want to run CI in PRs for the notebooks we touched
-    !buildhtml: bash -c 'if [[ $GITHUB_EVENT_NAME == pull_request ]]; then git fetch origin main --depth=1; git diff origin/main --name-only tutorials | grep .md; else find tutorials -name "*.md"; fi | grep -vf ignore_testing | xargs jupytext --to notebook '
+    !buildhtml: bash -c 'if [[ $GITHUB_EVENT_NAME == pull_request && -z "$(grep force_run:all_tests ${GITHUB_EVENT_PATH})" ]]; then git fetch origin main --depth=1; git diff origin/main --name-only tutorials | grep .md; else find tutorials -name "*.md"; fi | grep -vf ignore_testing | xargs jupytext --to notebook '
 
     !buildhtml: pytest --nbval-lax -vv --suppress-no-test-exit-code --durations=10 tutorials
     buildhtml: sphinx-build -b html . _build/html -D nb_execution_mode=auto -nWT --keep-going