Bump purcell/setup-emacs

Bumps [purcell/setup-emacs](https://github.com/purcell/setup-emacs) from 8415786a52b3a84babd7ffc92a802b06e3780c17 to bdc64dc730ae1fcba200bfd52cb1b4cf6159cbe5.
- [Release notes](https://github.com/purcell/setup-emacs/releases)
- [Commits](purcell/setup-emacs@8415786...bdc64dc)

---
updated-dependencies:
- dependency-name: purcell/setup-emacs
  dependency-version: bdc64dc730ae1fcba200bfd52cb1b4cf6159cbe5
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/test.yml

@@ -77,7 +77,7 @@ jobs:
                lib tests
 
     - name: Set up Emacs
-      uses: purcell/setup-emacs@8415786a52b3a84babd7ffc92a802b06e3780c17
+      uses: purcell/setup-emacs@bdc64dc730ae1fcba200bfd52cb1b4cf6159cbe5
       with:
         version: 30.2