workflows extracted everything to env. variables

For easier updates and to minimize replace points/locations.

.github/workflows/clang-cl-qt6.yml

@@ -27,6 +27,9 @@ jobs:
     runs-on: windows-2022
 
     env:
+      # Initial build size 1.4G :/
+      TINY_CCACHE_MAX_SIZE: 2G
+      TINY_LLVM_VERSION: 18.1.7
       TINY_QT_VERSION: 6.7.1
       TINY_QT_SPEC: msvc2019_64
 
@@ -616,10 +619,10 @@ jobs:
           C:/Program Files/LLVM
         key: llvm-18.1.7
 
-    - name: Install LLVM and Clang 18.1.7
+    - name: Install LLVM and Clang ${{ env.TINY_LLVM_VERSION }}
       uses: KyleMayes/install-llvm-action@v1
       with:
-        version: 18.1.7
+        version: ${{ env.TINY_LLVM_VERSION }}
         force-version: true
         cached: ${{ steps.llvm-cache.outputs.cache-hit }}
 
@@ -651,8 +654,7 @@ jobs:
 
     - name: Ccache prepare configuration 🥳
       run: |
-        # Initial build size 1.4G :/
-        ccache.exe --set-config max_size=2G
+        ccache.exe --set-config max_size=$env:TINY_CCACHE_MAX_SIZE
         ccache.exe --set-config sloppiness=pch_defines,time_macros
         ccache.exe --set-config depend_mode=true
         ccache.exe --set-config inode_cache=true