[Feat]: Workflow for closing issues on merging PR linked to that issue

[Asymtode712]

Describe the feature

As the repo maintainers have to manually close an issue after merging a PR linked with that issue, I propose a workflow where the issue linked with a PR which be automatically closed when that PR is merged by the maintainer and efforts will be saved.

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[Asymtode712]

@MAVRICK-1 please assign me this issue under gssoc'24

[MAVRICK-1]

@Asymtode712 go ahead

[Asymtode712]

@MAVRICK-1 Please carry out the steps given below so that this and other workflows can run properly:

Step 1: Create a Personal Access Token (PAT) with repo Permission

1. Navigate to Settings:

• Click on your profile picture in the upper-right corner of the page.
• Select "Settings" from the dropdown menu.

2. Go to Developer Settings:

• In the left sidebar, scroll down and click on "Developer settings."

3. Create a New Token:

• Click on "Personal access tokens" in the left sidebar.
• Click on the "Generate new token" button.

4. Configure the Token:

• Token Description: Enter a descriptive name for the token (e.g., Repo Access Token).
• Expiration: Set no expiration.
• Select Scopes: Check the box next to repo to grant full control of private repositories.

5. Generate Token:

• Scroll down and click on the "Generate token" button.
• Important: Copy the token to a secure location. You will not be able to see it again once you navigate away from the page.
  

Step 2: Assign the Token to GITHUB_TOKEN Environment Variable

1. Navigate to Your Repository:

• Go to your repository on GitHub.
• Click on the "Settings" tab.

2. Go to Secrets:

• In the left sidebar, click on "Secrets and variables" and then "Actions".

3. Create a New Secret:

• Click on the "New repository secret" button.
• Name: Enter GITHUB_TOKEN.
• Value: Paste your generated token.
• Click on the "Add secret" button.

[MAVRICK-1]

change the name of the variable to SECRET_GITHUB_TOKEN

[Asymtode712]

ok