fix sarifs

Author: zhamborova

plugins/tools/dartanalyzer/test/expected.sarif

@@ -1,5 +1,5 @@
 {
-"$schema": "https://raw.githubusercontent.com/oasis-tcs/sarif-spec/master/Schemata/sarif-schema-2.1.0.json",
+  "$schema": "https://raw.githubusercontent.com/oasis-tcs/sarif-spec/master/Schemata/sarif-schema-2.1.0.json",
   "runs": [
     {
       "results": [
@@ -8,7 +8,7 @@
             {
               "physicalLocation": {
                 "artifactLocation": {
-                  "uri": "plugins/tools/dartanalyzer/test/src/Test.dart"
+                  "uri": "/plugins/tools/dartanalyzer/test/src/Test.dart"
                 },
                 "region": {
                   "startLine": 2
@@ -26,7 +26,7 @@
             {
               "physicalLocation": {
                 "artifactLocation": {
-                  "uri": "plugins/tools/dartanalyzer/test/src/Test.dart"
+                  "uri": "/plugins/tools/dartanalyzer/test/src/Test.dart"
                 },
                 "region": {
                   "startLine": 28