tweak github actions running cause

Author: darvil82

.github/workflows/gradle-ci-jar.yml

@@ -10,8 +10,6 @@ name: Jar
 on:
   push:
     branches: [ "main", "dev" ]
-  pull_request:
-    branches: [ "main", "dev" ]
 
 permissions:
   contents: read

.github/workflows/gradle-ci-javadoc-jar.yml

@@ -10,8 +10,6 @@ name: JavadocJar
 on:
   push:
     branches: [ "main", "dev" ]
-  pull_request:
-    branches: [ "main", "dev" ]
 
 permissions:
   contents: read

.github/workflows/gradle-ci-tests.yml

@@ -10,8 +10,6 @@ name: Tests
 on:
   push:
     branches: [ "main", "dev" ]
-  pull_request:
-    branches: [ "main", "dev" ]
 
 permissions:
   contents: read