Update build.yml

Author: Dhangofa

.github/workflows/build.yml

@@ -19,8 +19,14 @@ jobs:
 
     - name: Decode Permanent Keystore
       run: |
-        echo "${{ secrets.KEYSTORE_BASE64 }}" | base64 --decode > release.keystore
-
+        # Strips out the BEGIN/END headers, removes hidden Windows carriage returns (\r), and decodes
+        sed -i '/---/d' release.keystore || true
+        cat << 'EOF' > encoded_key.txt
+        ${{ secrets.KEYSTORE_BASE64 }}
+        EOF
+        sed -i '/---/d' encoded_key.txt
+        tr -d '\r\n ' < encoded_key.txt | base64 --decode > release.keystore
+        
     - name: Zipalign and Sign Release APK (V2 Signature)
       run: |
         BUILD_TOOLS_DIR=$(ls -d $ANDROID_HOME/build-tools/* | tail -1)