fix: re-added lint-shell script because CI depends on it

Author: CDeltakai

package.json

@@ -118,6 +118,7 @@
     "test": "node ./scripts/test.mjs",
     "lint": "matrixai-lint",
     "lintfix": "matrixai-lint --fix",
+    "lint-shell": "find ./src ./tests ./scripts -type f -regextype posix-extended -regex '.*\\.(sh)' -exec shellcheck {} +",
     "docs": "shx rm -rf ./docs && typedoc --gitRevision master --tsconfig ./tsconfig.build.json --out ./docs src",
     "pkg": "node ./scripts/build.mjs --pkg && node ./scripts/pkg.mjs",
     "polykey": "node ./scripts/build.mjs && node dist/polykey.mjs",