test(ffe): update canonical fixtures

Author: dd-octo-sts[bot]

tracer/test/Datadog.Trace.Tests/FeatureFlags/ffe-system-test-data/SOURCE.md

@@ -3,7 +3,7 @@
 These files are copied from the canonical FFE fixture repository.
 
 Canonical source: https://github.com/DataDog/ffe-system-test-data
-Source commit: ea8b5cc5ce335109f11f3efbc5fd608f98a3ca54
+Source commit: b6470316cbfb00ad507eee79f5053a6a481a8c3c
 
 Do not edit these fixtures directly in dd-trace-dotnet. Add or update shared FFE behavior in ffe-system-test-data first, then refresh this snapshot.
 

tracer/test/Datadog.Trace.Tests/FeatureFlags/ffe-system-test-data/evaluation-cases/test-case-regex-flag.json

@@ -1,4 +1,43 @@
 [
+  {
+    "attributes": {
+      "comma_regex_case": "xxaaay"
+    },
+    "defaultValue": "none",
+    "flag": "regex-flag",
+    "result": {
+      "reason": "TARGETING_MATCH",
+      "value": "comma-quantifier"
+    },
+    "targetingKey": "comma-quantifier",
+    "variationType": "STRING"
+  },
+  {
+    "attributes": {
+      "whitespace_regex_case": "prefix exact suffix"
+    },
+    "defaultValue": "none",
+    "flag": "regex-flag",
+    "result": {
+      "reason": "TARGETING_MATCH",
+      "value": "literal-whitespace"
+    },
+    "targetingKey": "literal-whitespace",
+    "variationType": "STRING"
+  },
+  {
+    "attributes": {
+      "whitespace_regex_case": "exact"
+    },
+    "defaultValue": "none",
+    "flag": "regex-flag",
+    "result": {
+      "reason": "DEFAULT",
+      "value": "none"
+    },
+    "targetingKey": "trimmed-whitespace-does-not-match",
+    "variationType": "STRING"
+  },
   {
     "attributes": {
       "email": "user.name+tag@capture.example"