build(deps-dev): bump @mariozechner/pi-coding-agent

Bumps [@mariozechner/pi-coding-agent](https://github.com/badlogic/pi-mono/tree/HEAD/packages/coding-agent) from 0.70.2 to 0.73.1.
- [Release notes](https://github.com/badlogic/pi-mono/releases)
- [Changelog](https://github.com/earendil-works/pi/blob/main/packages/coding-agent/CHANGELOG.md)
- [Commits](https://github.com/badlogic/pi-mono/commits/v0.73.1/packages/coding-agent)

---
updated-dependencies:
- dependency-name: "@mariozechner/pi-coding-agent"
  dependency-version: 0.72.1
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package.json

@@ -56,7 +56,7 @@
     "@eslint/json": "1.2.0",
     "@eslint/markdown": "8.0.1",
     "@mariozechner/pi-ai": "0.70.2",
-    "@mariozechner/pi-coding-agent": "0.70.2",
+    "@mariozechner/pi-coding-agent": "0.73.1",
     "@semantic-release/changelog": "6.0.3",
     "@semantic-release/commit-analyzer": "13.0.1",
     "@semantic-release/exec": "6.0.3",