GHA: run-tests workflow can ignore some paths

Change-Id: I44f8b5706fac60979aa81ff7e39c0d14f9748465
Reviewed-on: https://review.couchbase.org/c/couchbase-elasticsearch-connector/+/235677
Tested-by: Build Bot <[email protected]>
Reviewed-by: David Nault <[email protected]>

Author: dnault

.github/workflows/run-tests.yml

@@ -4,8 +4,17 @@ concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
 
 on:
-  push:
   workflow_dispatch:
+  push:
+    paths-ignore:
+      - '*.md'
+      - '*.adoc'
+      - '.gitignore'
+      - '.editorconfig'
+      - 'examples/**'
+      - 'Dockerfile*'
+      - '.github/workflows/**'
+      - '!.github/workflows/run-tests.yml'
 
 jobs:
   build: