Bump lambda::terraform-aws-lambda from 8.5.0 to 8.7.0

Bumps [lambda::terraform-aws-lambda](https://github.com/terraform-aws-modules/terraform-aws-lambda) from 8.5.0 to 8.7.0.
- [Release notes](https://github.com/terraform-aws-modules/terraform-aws-lambda/releases)
- [Changelog](https://github.com/terraform-aws-modules/terraform-aws-lambda/blob/master/CHANGELOG.md)
- [Commits](terraform-aws-modules/terraform-aws-lambda@v8.5.0...v8.7.0)

---
updated-dependencies:
- dependency-name: lambda::github::terraform-aws-modules/terraform-aws-lambda::v8.5.0
  dependency-version: 8.7.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

main.tf

@@ -3,7 +3,7 @@ terraform {
 }
 
 module "lambda" {
-  source = "git::https://github.com/terraform-aws-modules/terraform-aws-lambda.git?ref=v8.5.0"
+  source = "git::https://github.com/terraform-aws-modules/terraform-aws-lambda.git?ref=v8.7.0"
 
   function_name            = var.name
   description              = "Gather open pull requests and send it to slack"