Add run build flow on push

Signed-off-by: Max Lambrecht <maxlambrecht@gmail.com>

Author: maxlambrecht

.github/workflows/pr_build.yml .github/workflows/build.yml

@@ -1,8 +1,12 @@
-name: PR Build
+name: Build
 
 on:
-  pull_request: {}
-  workflow_dispatch: {}
+  push:
+  pull_request:
+  workflow_dispatch:
+
+permissions:
+  contents: read
 
 jobs:
 

README.md

@@ -1,6 +1,6 @@
 # Java SPIFFE Library
 
-[![Build Status](https://github.com/spiffe/java-spiffe/actions/workflows/pr_build.yml/badge.svg)](https://github.com/spiffe/java-spiffe/actions/workflows/pr_build.yml)
+[![Build Status](https://github.com/spiffe/java-spiffe/actions/workflows/build.yml/badge.svg?branch=main)](https://github.com/spiffe/java-spiffe/actions/workflows/build.yml?query=branch%3Amain)
 [![Coverage Status](https://coveralls.io/repos/github/spiffe/java-spiffe/badge.svg)](https://coveralls.io/github/spiffe/java-spiffe?branch=main)
 
 ## Overview