fix step

Author: weidongxu-microsoft

eng/pipelines/ci-typespec-java.yaml

@@ -111,6 +111,7 @@ jobs:
           azureSubscription: "TypeSpec Storage"
           scriptType: "bash"
           scriptLocation: "inlineScript"
-          inlineScript: npx --no-install tsp-spector upload-coverage --coverageFile $(Build.SourcesDirectory)/typespec-tests/tsp-spector-coverage-java.json --generatorName "@azure-tools/typespec-java" --storageAccountName typespec --containerName coverages --generatorMode azure --generatorVersion $(node -p -e "require('./typespec-extension/package.json').version")
+          inlineScript: npx --no-install tsp-spector upload-coverage --coverageFile ./tsp-spector-coverage-java.json --generatorName "@azure-tools/typespec-java" --storageAccountName typespec --containerName coverages --generatorMode azure --generatorVersion $(node -p -e "require('../typespec-extension/package.json').version")
+        workingDirectory: ./typespec-tests
 
       - template: /eng/pipelines/steps/cleanup-maven-local-cache.yml