Bump thruster from 0.1.19 to 0.1.20

Bumps [thruster](https://github.com/basecamp/thruster) from 0.1.19 to 0.1.20.
- [Changelog](https://github.com/basecamp/thruster/blob/v0.1.20/CHANGELOG.md)
- [Commits](basecamp/thruster@v0.1.19...v0.1.20)

---
updated-dependencies:
- dependency-name: thruster
  dependency-version: 0.1.20
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

Gemfile.lock

@@ -357,8 +357,8 @@ GEM
     tailwindcss-ruby (4.1.18-aarch64-linux-gnu)
     tailwindcss-ruby (4.1.18-x86_64-linux-gnu)
     thor (1.5.0)
-    thruster (0.1.19-aarch64-linux)
-    thruster (0.1.19-x86_64-linux)
+    thruster (0.1.20-aarch64-linux)
+    thruster (0.1.20-x86_64-linux)
     timeout (0.6.0)
     tsort (0.2.0)
     turbo-rails (2.0.23)