Fixes needle with invalid JSON and adds pre-commit configuration (#59)

* add pre-commit configuration

* repair broken needle

.pre-commit-config.yaml

@@ -0,0 +1,9 @@
+repos:
+-   repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v3.2.0
+    hooks:
+    -   id: trailing-whitespace
+    -   id: end-of-file-fixer
+    -   id: check-json
+    -   id: check-yaml
+    -   id: check-added-large-files

needles/anaconda/partitioning/rocky-fs_ext4_preselected-20210812.json

@@ -12,6 +12,6 @@
   "tags": [
     "anaconda_part_fs",
     "anaconda_part_fs_ext4_selected",
-    "ENV-DISTRI-rocky",
+    "ENV-DISTRI-rocky"
   ]
-}
+}