make pull_requests also use "controller" workflow

for reasons unknown, the controller workflow was only used by pushes,
while all workflows were triggered separately for pull requests.

now both pushes and pull requests follow the same CI flow, with some
specifics for pushes being handled with ifs

.github/workflows/build.yml

@@ -1,6 +1,6 @@
 name: build
 
-on: [workflow_call, pull_request]
+on: workflow_call
 
 env:
   MYSQL_DATABASE: 'ragnarok'

.github/workflows/clang15_test.yml

@@ -1,6 +1,6 @@
 name: clang15_test
 
-on: [workflow_call, pull_request]
+on: workflow_call
 
 env:
   MYSQL_DATABASE: 'ragnarok'

.github/workflows/codeql-analysis.yml

@@ -1,6 +1,6 @@
 name: "CodeQL"
 
-on: [workflow_call, pull_request]
+on: workflow_call
 
 jobs:
   analyze:

.github/workflows/controller.yml

@@ -1,7 +1,6 @@
 name: controller
 
-on:
-  push:
+on: [push, pull_request]
 
 jobs:
   hwsapibot:

.github/workflows/gcc_test.yml

@@ -1,6 +1,6 @@
 name: gcc_test
 
-on: [workflow_call, pull_request]
+on: workflow_call
 
 env:
   MYSQL_DATABASE: 'ragnarok'

.github/workflows/gccold1.yml

@@ -1,6 +1,6 @@
 name: gcc_old1
 
-on: [workflow_call, pull_request]
+on: workflow_call
 
 env:
   MYSQL_DATABASE: 'ragnarok'

.github/workflows/gccold2.yml

@@ -1,6 +1,6 @@
 name: gcc_old2
 
-on: [workflow_call, pull_request]
+on: workflow_call
 
 env:
   MYSQL_DATABASE: 'ragnarok'

.github/workflows/gccold3.yml

@@ -1,6 +1,6 @@
 name: gcc_old3
 
-on: [workflow_call, pull_request]
+on: workflow_call
 
 env:
   MYSQL_DATABASE: 'ragnarok'

.github/workflows/gccsnapshot_test.yml

@@ -1,6 +1,6 @@
 name: gccsnapshot_test
 
-on: [workflow_call, pull_request]
+on: workflow_call
 
 env:
   MYSQL_DATABASE: 'ragnarok'

.github/workflows/mariadb.yml

@@ -1,6 +1,6 @@
 name: mariadb
 
-on: [workflow_call, pull_request]
+on: workflow_call
 
 env:
   MYSQL_DATABASE: 'ragnarok'

.github/workflows/mysql.yml

@@ -1,6 +1,6 @@
 name: mysql
 
-on: [workflow_call, pull_request]
+on: workflow_call
 
 env:
   MYSQL_DATABASE: 'ragnarok'

.github/workflows/tools.yml

@@ -1,6 +1,6 @@
 name: tools
 
-on: [workflow_call, pull_request]
+on: workflow_call
 
 env:
   MYSQL_DATABASE: 'ragnarok'