chore(.net): add ddb local to .net release (#2075)

Author: josecorella

DynamoDbEncryption/codebuild/release-staging.yml

@@ -60,6 +60,9 @@ phases:
 
       # run test vectors
       - cd ../TestVectors
+      # Spin up ddb local
+      - docker run --name dynamodb -d -p 8000:8000 amazon/dynamodb-local -port 8000 -inMemory -cors *
+
       - sed -i.backup  "/\<ProjectReference Include=\"..\/..\/..\/DynamoDbEncryption\/runtimes\/net\/DynamoDbEncryption.csproj\" \/>/d" runtimes/net/DbEsdkTestVectors.csproj
       - dotnet add runtimes/net/DbEsdkTestVectors.csproj package AWS.Cryptography.DbEncryptionSDK.DynamoDb --version $VERSION
       - make transpile_net

DynamoDbEncryption/codebuild/test-prod.yml

@@ -36,6 +36,9 @@ phases:
 
       # run test vectors
       - cd ../TestVectors
+      # Spin up ddb local
+      - docker run --name dynamodb -d -p 8000:8000 amazon/dynamodb-local -port 8000 -inMemory -cors *
+
       - sed -i.backup  "/\<ProjectReference Include=\"..\/..\/..\/DynamoDbEncryption\/runtimes\/net\/DynamoDbEncryption.csproj\" \/>/d" runtimes/net/DbEsdkTestVectors.csproj
       - dotnet add runtimes/net/DbEsdkTestVectors.csproj package AWS.Cryptography.DbEncryptionSDK.DynamoDb --version $VERSION
       - make transpile_net