Run CI workflows on all pull requests (#1217)

Problem: Pull requests into feature branches were not running all workflows.

Solution: Update workflow to run pipelines on all pull requests.

.github/workflows/ci.yml

@@ -8,9 +8,6 @@ on:
     tags:
       - "v[0-9]+.[0-9]+.[0-9]+*"
   pull_request:
-    branches:
-      - main
-      - release-*
 
 defaults:
   run:

.github/workflows/conformance.yml

@@ -8,9 +8,6 @@ on:
     tags:
       - "v[0-9]+.[0-9]+.[0-9]+*"
   pull_request:
-    branches:
-      - main
-      - release-*
   schedule:
     - cron: "0 4 * * *" # run every day at 4am UTC
 

.github/workflows/lint.yml

@@ -5,12 +5,6 @@ on:
     branches:
       - main
   pull_request:
-    branches:
-      - main
-    types:
-      - opened
-      - reopened
-      - synchronize
 
 concurrency:
   group: ${{ github.ref_name }}-lint

.yamllint.yaml

@@ -7,6 +7,7 @@ yaml-files:
 ignore:
   - deploy/helm-chart/templates/
   - deploy/helm-chart/crds/
+  - .github/workflows/
 
 rules:
   braces: enable