Add sonar exclusion for codec test utils

sonar-project.properties

@@ -5,7 +5,7 @@ sonar.sources=.
 # Full exclusions from the static analysis
 sonar.exclusions=**/node_modules/**/*, **/contracts/artifacts/**/*, **/generated/**/*, **/docs/**/*, **/*.config.ts, **/*.config.js, **/*.txt, pkg/solana/codec/anchoridl.go
 # Coverage exclusions
-sonar.coverage.exclusions=**/*.test.ts, **/*_test.go, **/contracts/tests/**/*, **/integration-tests/**/*
+sonar.coverage.exclusions=**/*.test.ts, **/*_test.go, **/contracts/tests/**/*, **/integration-tests/**/*, **/pkg/solana/codec/testutils/**/*
 
 # Tests' root folder, inclusions (tests to check and count) and exclusions
 sonar.tests=.