STY: Beautify unrelated test jsons

unittests/test_directories/examples_json/invalidjson.json

 {
-	"projectId": 10002,
-	"archived": false,
-	"coordinator": {
-		"firstname": "Miri",
-		"lastname": "Mueller",
-		"email": "miri.mueller@science.de"
-	},
-	"start_date": "2022-03-01",
-	"candidates": ["Mouse", "Penguine"],
-	"rvalue": 0.4444,
-	"url": "https://site.de/index.php/"
+    "projectId": 10002,
+    "archived": false,
+    "coordinator": {
+        "firstname": "Miri",
+        "lastname": "Mueller",
+        "email": "miri.mueller@science.de"
+    },
+    "start_date": "2022-03-01",
+    "candidates": ["Mouse", "Penguine"],
+    "rvalue": 0.4444,
+    "url": "https://site.de/index.php/"
 }

unittests/test_directories/examples_json/testjson.json

 {
-	"name": "DEMO",
-	"projectId": 10002,
-	"archived": false,
-	"Person": [
-        {
-		    "firstname": "Miri",
-		    "lastname": "Mueller",
-		    "other": null,
-		    "email": "miri.mueller@science.de"
-	    },
+    "name": "DEMO",
+    "projectId": 10002,
+    "archived": false,
+    "Person": [{
+            "firstname": "Miri",
+            "lastname": "Mueller",
+            "other": null,
+            "email": "miri.mueller@science.de"
+        },
         {
             "firstname": "Mara",
             "lastname": "Mueller",
-		    "email": "mara.mueller@science.de"
+            "email": "mara.mueller@science.de"
         }
     ],
-	"start_date": "2022-03-01",
-	"candidates": ["Mouse", "Penguine"],
-	"rvalue": 0.4444,
-	"url": "https://site.de/index.php/"
+    "start_date": "2022-03-01",
+    "candidates": ["Mouse", "Penguine"],
+    "rvalue": 0.4444,
+    "url": "https://site.de/index.php/"
 }