chore(ci): better specify how to trigger Github Actions (#658)

Author: StephenSorriaux

.github/workflows/release.yml

@@ -1,6 +1,9 @@
 name: Kazoo Awesome Release
 
-on: [push]
+on:
+  push:
+    tags:
+      - '*'
 
 jobs:
   build-and-release:

.github/workflows/testing.yml

@@ -1,6 +1,14 @@
 name: Kazoo Awesome Testing
 
-on: [push]
+on:
+  push:
+    branches:
+      - master
+      - release/*
+  pull_request:
+    branches:
+      - master
+      - release/*
 
 jobs:
   test: