fix: reintroducing lint-shell because CI depends on it

Author: CDeltakai

package.json

@@ -76,6 +76,7 @@
     "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",
     "bench": "tsc -p ./tsconfig.build.json && shx rm -rf ./benches/results && tsx ./benches/index.ts"
   },