Update workflow (added if condition for key storage addition step)

Signed-off-by: Lev Rusanov <30170278+JDM170@users.noreply.github.com>

.github/workflows/Build.yml

@@ -38,6 +38,14 @@ jobs:
         run: |
           . Scripts\Zulu_JDK.ps1
 
+      - name: Add keystore from secrets
+        env:
+          KEYSTORE: ${{ secrets.REVANCED_KEYSTORE }}
+        if: ${{ env.KEYSTORE != '' }}
+        run: |
+          [byte[]]$bytes = [convert]::FromBase64String('${{ env.KEYSTORE }}')
+          [System.IO.File]::WriteAllBytes("Temp\revanced.keystore", $bytes)
+
       - name: Build
         run: |
           $JavaPath = (Resolve-Path -Path "Temp\jdk_windows-x64_bin\zulu*win_x64\bin\java.exe").Path
@@ -80,3 +88,4 @@ jobs:
           tag_name: ${{ env.RELEASE_NAME }}
           body_path: ${{ steps.read_release.outputs.ReleaseBody }}
           files: ReVanced.zip
+