chore(dev-deps): bump @salesforce/cli-plugins-testkit

Bumps [@salesforce/cli-plugins-testkit](https://github.com/salesforcecli/cli-plugins-testkit) from 5.3.53 to 5.3.54.
- [Release notes](https://github.com/salesforcecli/cli-plugins-testkit/releases)
- [Changelog](https://github.com/salesforcecli/cli-plugins-testkit/blob/main/CHANGELOG.md)
- [Commits](salesforcecli/cli-plugins-testkit@5.3.53...5.3.54)

---
updated-dependencies:
- dependency-name: "@salesforce/cli-plugins-testkit"
  dependency-version: 5.3.54
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

package.json

@@ -22,7 +22,7 @@
   },
   "devDependencies": {
     "@oclif/plugin-command-snapshot": "^5.3.13",
-    "@salesforce/cli-plugins-testkit": "^5.3.53",
+    "@salesforce/cli-plugins-testkit": "^5.3.54",
     "@salesforce/dev-scripts": "^11.0.4",
     "@salesforce/plugin-command-reference": "^3.1.91",
     "@salesforce/ts-sinon": "^1.4.34",

yarn.lock

@@ -1500,12 +1500,12 @@
   resolved "https://registry.yarnpkg.com/@rtsao/scc/-/scc-1.1.0.tgz#927dd2fae9bc3361403ac2c7a00c32ddce9ad7e8"
   integrity sha512-zt6OdqaDoOnJ1ZYsCYGt9YmWzDXl4vQdKTyJev62gFhRGKdx7mcT54V9KIjg+d2wi9EXsPvAPKe7i7WjfVWB8g==
 
-"@salesforce/cli-plugins-testkit@^5.3.53":
-  version "5.3.53"
-  resolved "https://registry.yarnpkg.com/@salesforce/cli-plugins-testkit/-/cli-plugins-testkit-5.3.53.tgz#acb60f5f50cf7f3211eaf7c70c3dff726b5e1571"
-  integrity sha512-tOMbLXZLrHLvK/qtmTNaTsDW1RC6/vpvXCbodejtMdyiDUf0rY3oROeboFA6VCy5iu71aumetLm1EBlvcyh7hw==
+"@salesforce/cli-plugins-testkit@^5.3.54":
+  version "5.3.54"
+  resolved "https://registry.yarnpkg.com/@salesforce/cli-plugins-testkit/-/cli-plugins-testkit-5.3.54.tgz#636bed66cb28f94c3d415277d1796f5407a6313f"
+  integrity sha512-OT4S2Wstg2gqWWbhG4q+/AioIWpU1BEsC+KBIBtw1Wckktxv6B/SWlpgIrCz6nQAPwwDpY1sNeGLxpDsNUKVzw==
   dependencies:
-    "@salesforce/core" "^8.28.3"
+    "@salesforce/core" "^8.28.4"
     "@salesforce/kit" "^3.2.6"
     "@salesforce/ts-types" "^2.0.11"
     "@types/shelljs" "^0.10.0"