Add check-json to pre-commit linters, and fix invalid ann-bench JSON …

…config (#1894)

The ann-bench conf files had a couple of datasets with invalid JSON config files, causing them to fail to run.

This adds a check-json pre-commit hook to detect invalid json, which would have failed on these files with:

```
python/raft-ann-bench/src/raft-ann-bench/run/conf/mnist-784-euclidean.json: Failed to json decode (Expecting value: line 1 column 1 (char 0))
python/raft-ann-bench/src/raft-ann-bench/run/conf/glove-100-inner.json: Failed to json decode (Expecting ',' delimiter: line 686 column 7 (char 15218))
```

Authors:
  - Ben Frederickson (https://github.com/benfred)

Approvers:
  - Corey J. Nolet (https://github.com/cjnolet)

URL: #1894

.pre-commit-config.yaml

@@ -105,7 +105,10 @@ repos:
         hooks:
             - id: rapids-dependency-file-generator
               args: ["--clean"]
-
+      - repo: https://github.com/pre-commit/pre-commit-hooks
+        rev: v4.5.0
+        hooks:
+              - id: check-json
 
 default_language_version:
       python: python3

python/raft-ann-bench/src/raft-ann-bench/run/conf/glove-100-inner.json

@@ -207,7 +207,6 @@
       "algo": "faiss_gpu_ivf_flat",
       "build_param": {"nlist":8192},
       "file": "glove-100-inner/faiss_gpu_ivf_flat/nlist8192",
-      "file": "index/glove-100-inner/faiss_ivf_flat/nlist8192",
       "search_params": [
         {
           "nprobe": 1
@@ -682,7 +681,7 @@
       "algo": "faiss_gpu_flat",
       "build_param": {},
       "file": "glove-100-inner/faiss_gpu_flat/flat",
-      "search_params": [{}]
+      "search_params": [{}],
       "search_result_file": "result/glove-100-inner/faiss_gpu_flat/flat"
     },
 

python/raft-ann-bench/src/raft-ann-bench/run/conf/mnist-784-euclidean.json

@@ -1,4 +1,4 @@
-c{
+{
   "dataset": {
     "name": "mnist-784-euclidean",
     "base_file": "mnist-784-euclidean/base.fbin",