npm: Update Lint-Staged Command to Run Via npx
npm: Update Lint-Staged Command to Run Via npx

Changes `lint-staged` to run via `npx` rather than being invoked
directly. This change sets up the PATH for various programs like VSCode
or GitHub Desktop that might be running into issues where `lint-staged`
is attempting to be directly executed, outside of Node.

Fixes #1568

quisquous/cactbot,quisquous/cactbot,quisquous/cactbot,quisquous/cactbot,quisquous/cactbot,quisquous/cactbot