CI: Add hash for toolchain

.gitea/workflows/build.yaml

@@ -33,12 +33,23 @@ jobs:
         id: vars
         run: echo "sha_short=$(git rev-parse --short HEAD)" >> $GITEA_OUTPUT
 
+      - name: Get toolchain hash
+        id: toolchain-hash
+        run: |
+          echo "hash=$(echo `find ${{ gitea.workspace }}/programs/develop/cmm/* -type f - print0 | sort -z | xargs -0 sha1sum` \
+          `sha1sum ${{ gitea.workspace }}/programs/develop/ktcc/trunk/bin/kos32-tcc` \
+          `find ${{ gitea.workspace }}/programs/develop/objconv/ -type f -print0 | sort -z | xargs -0 sha1sum` \
+          `find ${{ gitea.workspace }}/programs/other/kpack/kerpack_linux/ -type f -print0 | sort -z | xargs -0 sha1sum` \
+          `find ${{ gitea.workspace }}/programs/other/kpack/linux/ -type f -print0 | sort -z | xargs -0 sha1sum` \
+          `find ${{ gitea.workspace }}/programs/develop/clink/ -type f -print0 | sort -z | xargs -0 sha1sum` \
+          | sha1sum)" >> $GITEA_OUTPUT
+
       - name: Restore toolchain
         id: cache-toolchain
         uses: actions/cache/restore@v4
         with:
           path: /home/autobuild
-          key: kolibri-toolchain
+          key: kolibri-toolchain-${{ steps.toolchain-hash.outputs.hash }}
 
       - name: Build and install C--
         if: steps.cache-toolchain.outputs.cache-hit != 'true'
@@ -98,7 +109,7 @@ jobs:
         uses: actions/cache/save@v4
         with:
           path: /home/autobuild
-          key: kolibri-toolchain
+          key: kolibri-toolchain-${{ steps.toolchain-hash.outputs.hash }}
 
       - name: Configure tup
         run: |