Pin version of rust toolchain in github action to 1.76 (fingerprint issue crashing build with 1.79)

Author: salmenf

.github/workflows/build_tauri.yml

@@ -27,7 +27,7 @@ jobs:
           node-version: lts/*
 
       - name: Rust setup
-        uses: dtolnay/rust-toolchain@stable
+        uses: dtolnay/rust-toolchain@1.76
         with:
           targets: ${{ matrix.platform == 'macos-latest' && 'aarch64-apple-darwin,x86_64-apple-darwin' || '' }}