Do not run workflows on every commit

.github/workflows/bench.yaml

@@ -2,8 +2,6 @@ name: Run benchmark and upload results
 
 on:
   push:
-    branches:
-      - master
     tags:
       - 'v*'
   workflow_dispatch:
@@ -11,6 +9,7 @@ on:
 jobs:
   bench:
     runs-on: ubuntu-18.04
+    if: github.ref == 'refs/heads/master'
     steps:
       - uses: actions/checkout@v1
 

.github/workflows/cli.yml

@@ -2,8 +2,6 @@ name: Build and upload CLI
 
 on:
   push:
-    branches:
-      - master
     tags:
       - 'v*'
   workflow_dispatch:
@@ -11,6 +9,7 @@ on:
 jobs:
   cli:
     runs-on: ${{ matrix.os }}
+    if: github.ref == 'refs/heads/master'
     strategy:
       matrix:
         os: [macos-11.0, ubuntu-18.04, windows-2019]

.github/workflows/java.yml

@@ -2,8 +2,6 @@ name: Build and publish Java artifact
 
 on:
   push:
-    branches:
-      - master
     tags:
       - 'v*'
   workflow_dispatch:
@@ -11,6 +9,7 @@ on:
 jobs:
   build:
     runs-on: ${{ matrix.os }}
+    if: github.ref == 'refs/heads/master'
     strategy:
       matrix:
         os: [macos-11.0, ubuntu-18.04, windows-2019]

.github/workflows/nodejs.yml

@@ -2,19 +2,18 @@ name: Build and publish Node.js package
 
 on:
   push:
-    branches:
-      - master
     tags:
       - 'v*'
   workflow_dispatch:
 
 jobs:
   build:
+    runs-on: ${{ matrix.os }}
+    if: github.ref == 'refs/heads/master'
     strategy:
       matrix:
         feature: [core, js]
         os: [macos-11.0, ubuntu-18.04, windows-2019, self-hosted]
-    runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v1
 

.github/workflows/python.yml

@@ -2,20 +2,19 @@ name: Build and publish Python package
 
 on:
   push:
-    branches:
-      - master
     tags:
       - 'v*'
   workflow_dispatch:
 
 jobs:
   build:
+    runs-on: ${{ matrix.os }}
+    if: github.ref == 'refs/heads/master'
     strategy:
       matrix:
         feature: [core, js]
         os: [macos-11.0, ubuntu-18.04, windows-2019]
         python: [3.7, 3.8, 3.9]
-    runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v1
       - name: Set up Python

.github/workflows/ruby.yml

@@ -2,8 +2,6 @@ name: Build and publish Ruby gem
 
 on:
   push:
-    branches:
-      - master
     tags:
       - 'v*'
   workflow_dispatch:
@@ -11,6 +9,7 @@ on:
 jobs:
   build:
     runs-on: ${{ matrix.os }}
+    if: github.ref == 'refs/heads/master'
     strategy:
       matrix:
         os: [ubuntu-18.04, macos-11.0]