ci(esp32s3-size-parity): install the latest soldr too

The size-parity workflow landed with #1434 after this branch unpinned the
others, so it still carried `version: 0.8.23`.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01StasPkdQ3D1gYGj6WnaQ3q

Author: zackees

.github/workflows/esp32s3-size-parity.yml

@@ -37,7 +37,6 @@ jobs:
       - name: Setup soldr
         uses: zackees/setup-soldr@v0
         with:
-          version: 0.8.23
           cache: true
           build-cache: true
           target-cache: true