ci : split build.yml + server.yml (#20546)

* ci : split build.yml

* cont : split server.yml

* cont : reduce paths

* cont : split build-android.yml + update paths

* ci : make msys workflows manual (#20588)

* ci : make cross-build workflows manual (#20585)

* cont : fix release paths

Co-authored-by: Sigbjørn Skjæret <sigbjorn.skjaeret@scala.com>

---------

Co-authored-by: Sigbjørn Skjæret <sigbjorn.skjaeret@scala.com>

.github/workflows/server-self-hosted.yml

@@ -14,7 +14,19 @@ on:
   push:
     branches:
       - master
-    paths: ['.github/workflows/server-self-hosted.yml', '**/CMakeLists.txt', '**/Makefile', '**/*.h', '**/*.hpp', '**/*.c', '**/*.cpp', '**/*.cu', '**/*.swift', '**/*.m', 'tools/server/**.*']
+    paths: [
+      '.github/workflows/server-self-hosted.yml',
+      '**/CMakeLists.txt',
+      '**/Makefile',
+      '**/*.h',
+      '**/*.hpp',
+      '**/*.c',
+      '**/*.cpp',
+      '**/*.cu',
+      '**/*.swift',
+      '**/*.m',
+      'tools/server/**.*'
+    ]
 
 env:
   LLAMA_LOG_COLORS: 1