feat(rust-libp2p): move to GitHub's merge queue

[thomaseizinger]

Summary

We are moving from mergify to GitHub's merge queue. For more context, see libp2p/rust-libp2p#4586.

Why do you need this?

What else do we need to know?

DRI: myself

Reviewer's Checklist

• It is clear where the request is coming from (if unsure, ask)
• All the automated checks passed
• The YAML changes reflect the summary of the request
• The Terraform plan posted as a comment reflects the summary of the request

[github-actions]

Before merge, verify that all the following plans are correct. They will be applied as-is after the merge.

Terraform plans

libp2p

Terraform used the selected providers to generate the following execution
plan. Resource actions are indicated with the following symbols:
  - destroy

Terraform will perform the following actions:

  # github_repository_file.this["rust-libp2p/.github/workflows/semantic-pull-request.yml"] will be destroyed
  # (because key ["rust-libp2p/.github/workflows/semantic-pull-request.yml"] is not in for_each map)
  - resource "github_repository_file" "this" {
      - branch              = "master" -> null
      - commit_author       = "GitHub" -> null
      - commit_email        = "noreply@github.com" -> null
      - commit_message      = "chore: Update .github/workflows/semantic-pull-request.yml [skip ci]" -> null
      - commit_sha          = "2c6c058bb7b0d373e05835fead3f8e63e3240583" -> null
      - content             = <<-EOT
            name: Semantic PR
            
            on:
              pull_request_target:
                types:
                  - opened
                  - edited
                  - synchronize
            
            jobs:
              main:
                uses: pl-strflt/.github/.github/workflows/reusable-semantic-pull-request.yml@v0.3
        EOT -> null
      - file                = ".github/workflows/semantic-pull-request.yml" -> null
      - id                  = "rust-libp2p/.github/workflows/semantic-pull-request.yml" -> null
      - overwrite_on_create = false -> null
      - ref                 = "master" -> null
      - repository          = "rust-libp2p" -> null
      - sha                 = "bd00f090c1ab26b8c8d52fc94b0b9c63ba8be77a" -> null
    }

Plan: 0 to add, 0 to change, 1 to destroy.