chore(ci): only run tests on the examples when they are modified (#463)

Save CPU horsepower.

Reviewed-on: https://code.forgejo.org/forgejo/runner/pulls/463
Reviewed-by: Michael Kriese <michael.kriese@gmx.de>
Co-authored-by: Earl Warren <contact@earl-warren.org>
Co-committed-by: Earl Warren <contact@earl-warren.org>

.forgejo/workflows/example-docker-compose.yml

@@ -4,6 +4,9 @@ on:
     branches:
       - 'main'
   pull_request:
+    paths:
+      - examples/docker-compose/**
+      - .forgejo/workflows/example-docker-compose.yml
 
 jobs:
   example-docker-compose:

.forgejo/workflows/example-lxc-systemd.yml

@@ -4,6 +4,9 @@ on:
     branches:
       - 'main'
   pull_request:
+    paths:
+      - examples/lxc-systemd/**
+      - .forgejo/workflows/example-lxc-systemd.yml
 
 env:
   SERIAL: "30"