flake.lock: Updating 'revealjs (hakimel/reveal.js)' - 5e12c6ae -> 853764bc (#81)

### Changes for revealjs

On branch: master
Commits: 5e12c6aeb7...853764bc8c

- [e33c3c72](e33c3c72f9) the speaker view presentation URL can be overridden via  (needed for reveal.js docs)
- [32cdd3b1](32cdd3b187) Fix DOM XSS
- [c83c6850](c83c68500f) rebuild notes plugin when html changes
- [ffd533c4](ffd533c40d) 4.2.2
- [e325cea6](e325cea6b7) dependency update
- [853764bc](853764bc8c) 4.3.0

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

flake.lock

@@ -291,11 +291,11 @@
     "revealjs": {
       "flake": false,
       "locked": {
-        "lastModified": 1645450091,
-        "narHash": "sha256-3fM1hKCbuIy8HzBv9JjjZW/RwE1CKeq++delBhbSvys=",
+        "lastModified": 1646038996,
+        "narHash": "sha256-8nNszZo+CLwTMKfDLi0XtjmKFMVVfBTbsfclHR49Ocs=",
         "owner": "hakimel",
         "repo": "reveal.js",
-        "rev": "5e12c6aeb7a37acca7ca22c0bd29548f9ff282ea",
+        "rev": "853764bc8ca791240ec7783273b707ce07a65af1",
         "type": "github"
       },
       "original": {