Add test for sample tags

Make sure that sample tags are not allowed, since this would interfere
with the sample tags that are set by Miracle

test/invalid-instances/sample_tags.json

+{
+    "files": [
+        {
+            "md5": "c3875788d22baa678c87c8f903cb2350",
+            "filename": "sample1_R1.fastq.gz",
+            "sample_name": "sample4",
+            "tags": {
+                "readtype": "forward",
+                "readgroup": "rg1"
+            }
+        },
+        {
+            "md5": "74cedbb88402dd16a6b4f96e5440fdfd",
+            "filename": "sample1_R2.fastq.gz",
+            "sample_name": "sample4",
+            "tags": {
+                "readtype": "umi",
+                "readgroup": "rg1"
+            }
+        },
+        {
+            "md5": "617e686e88c06ad1d7319f606ebcbfc5",
+            "filename": "sample1_R3.fastq.gz",
+            "sample_name": "sample4",
+            "tags": {
+                "readtype": "reverse",
+                "readgroup": "rg1"
+            }
+        }
+    ],
+    "sample_group": {
+        "samples": [
+            {
+                "sample_name": "sample4",
+                "tags": {
+                    "capture_kit": "Cre v2"
+                }
+            }
+        ],
+        "group_name": "samplegroup4"
+    },
+    "run_name": "runname4",
+    "title": "Test for file tags in runs endpoint"
+}

test/test-invalid.yml

@@ -22,3 +22,10 @@
     contains:
       - "is too short"
 
+- name: test sample tags
+  command: jsonschema -i test/invalid-instances/sample_tags.json transfer_schema.json
+  exit_code: 1
+  stderr:
+    contains:
+      - "Additional properties are not allowed ('tags' was unexpected)"
+