chore: fix lint-staged on for new plugins

[tumido]

After #466 lint-staged has issues when adding a new plugin. You end up with a cryptic error:

@janus-idp/shared-react:lint: ERROR: command finished with error: command (/Users/tcoufal/Programming/janus-idp/backstage-plugins/plugins/shared-react) yarn run lint -- --fix /Users/tcoufal/Programming/janus-idp/backstage-plugins/plugins/test/.eslintrc.js /Users/tcoufal/Programming/janus-idp/backstage-plugins/plugins/test/dev/index.tsx /Users/tcoufal/Programming/janus-idp/backstage-plugins/plugins/test/src/components/ExampleComponent/ExampleComponent.test.tsx /Users/tcoufal/Programming/janus-idp/backstage-plugins/plugins/test/src/components/ExampleComponent/ExampleComponent.tsx /Users/tcoufal/Programming/janus-idp/backstage-plugins/plugins/test/src/components/ExampleComponent/index.ts /Users/tcoufal/Programming/janus-idp/backstage-plugins/plugins/test/src/components/ExampleFetchComponent/ExampleFetchComponent.test.tsx /Users/tcoufal/Programming/janus-idp/backstage-plugins/plugins/test/src/components/ExampleFetchComponent/ExampleFetchComponent.tsx /Users/tcoufal/Programming/janus-idp/backstage-plugins/plugins/test/src/components/ExampleFetchComponent/index.ts /Users/tcoufal/Programming/janus-idp/backstage-plugins/plugins/test/src/index.ts /Users/tcoufal/Programming/janus-idp/backstage-plugins/plugins/test/src/plugin.test.ts /Users/tcoufal/Programming/janus-idp/backstage-plugins/plugins/test/src/plugin.ts /Users/tcoufal/Programming/janus-idp/backstage-plugins/plugins/test/src/routes.ts /Users/tcoufal/Programming/janus-idp/backstage-plugins/plugins/test/src/setupTests.ts exited (1)

from any random package in the monorepo (depends on which one is run the firsqt). I suspect this has something to do with vercel/turborepo#3364 and creating a tooling chain

husky -> npm -> lint-staged -> yarn -> turbo -> backstage-cli -> eslint

This PR should simplify the chain by removing one step and removing one tool to:

husky -> yarn -> lint-stage -> turbo -> backstage-cli -> eslint

PTAL

@schultzp2020

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication

[schultzp2020]

LGTM