ci: fix version check

Signed-off-by: Roman Volosatovs <rvolosatovs@riseup.net>

Author: rvolosatovs

.github/workflows/wrpc.yml

@@ -250,8 +250,9 @@ jobs:
         continue-on-error: ${{ github.repository_owner != 'wrpc' }}
         run: |
           pkgver=$(cargo pkgid | cut -d '@' -f 2)
-          if ! [ "$pkgver" = "${{ steps.ctx.outputs.version }}" ]; then
-            echo "version mismatch, $pkgver (package) != ${{ steps.ctx.outputs.version }} (tag)"
+          tagver=${{ steps.ctx.outputs.version }}
+          if ! [ "$pkgver" = "$tagver" ]; then
+            echo "version mismatch, $pkgver (package) != $tagver (tag)"
             exit 1
           fi
           cargo publish --token ${{ secrets.CARGO_REGISTRY_TOKEN }}