fix region flag

Author: Sa1Gur

.github/workflows/main.yml

@@ -32,4 +32,4 @@ jobs:
     - name: Install Dotnet-Lambda tool
       run: dotnet tool install --global Amazon.Lambda.Tools
     - name: Deploy
-      run: dotnet lambda deploy-serverless --stack-name LeetcodeDailyChallengeLambda --s3-bucket leetcode-daily-challenge-store --template src/LeetcodeDailyChallengeReminder/serverless.template --region us-east-1
+      run: dotnet lambda deploy-serverless --stack-name LeetcodeDailyChallengeLambda --s3-bucket leetcode-daily-challenge-store --template src/LeetcodeDailyChallengeReminder/serverless.template --region eu-west-1