build(deps): bump shaneisrael/fireshare in /docker/personal/fireshare

Bumps shaneisrael/fireshare from 1.6.10-lite to 1.6.12-lite.

---
updated-dependencies:
- dependency-name: shaneisrael/fireshare
  dependency-version: 1.6.12-lite
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

docker/personal/fireshare/docker-compose.yml

@@ -1,7 +1,7 @@
 services:
   fireshare:
     container_name: fireshare
-    image: shaneisrael/fireshare:1.6.10-lite
+    image: shaneisrael/fireshare:1.6.12-lite
     ports:
       - "80"
     volumes: