Update GitHub Actions workflow with permissions

Add permissions for write access to contents in workflow.

Author: its3mile

.github/workflows/rust.yml

@@ -13,7 +13,10 @@ jobs:
   build:
 
     runs-on: ubuntu-latest
-
+    
+    permissions:
+      contents: write
+    
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -28,6 +31,7 @@ jobs:
           cd pico-sdk
           git submodule update --init
           echo 'export PICO_SDK_PATH=$HOME/pico/pico-sdk' >> $GITHUB_PATH
+          echo "PICO_SDK_PATH=$HOME/pico/pico-sdk" >> $GITHUB_ENV
 
       - name: Install Picotool
         run: |
@@ -55,7 +59,9 @@ jobs:
 
       - name: Create UF2 from ELF
         run: |
-          sudo picotool uf2 convert target/thumbv8m.main-none-eabihf/release/mouse-jiggler-rp2350 -t elf target/thumbv8m.main-none-eabihf/release/mouse-jiggler-rp2350.uf2 -t uf2
+          sudo picotool uf2 convert \
+            target/thumbv8m.main-none-eabihf/release/mouse-jiggler-rp2350 -t elf \
+            target/thumbv8m.main-none-eabihf/release/mouse-jiggler-rp2350.uf2 -t uf2
       
       - name: Create Release
         uses: softprops/action-gh-release@v2