Add additional Permissions for Scorecard template for private repos

[shubham-stepsecurity]

@varunsh-coder please review the changes!
fixes #2483

[step-security-bot]

Please find StepSecurity AI-CodeWise code comments below.

Code Comments

testfiles/addworkflow/expected-scorecards.yml

• [High]Limit the scope of personal access token's permissions as much as possible
  The personal access token has been granted unnecessary permissions like read access to issues and pull requests. Create a new personal access token with the minimum possible scopes required to complete the job.
• [High]Avoid storing personal access tokens as plain text in the repository files
  The personal access token seems to be stored in a plain text format which is not safe and secure. Mask the personal access token while using it through environment variables or pass it as arguments to the script instead of hardcoding it within the repository files.
• [Medium]Avoid hardcoding secret keys and sensitive information in the repository files
  The secret key and sensitive information within the repository file can be accessed by anyone who has access to the repository. Use a secure and centralized storage solution like HashiCorp Vault or AWS Secrets Manager to store and manage secrets securely.
• [Low]Follow least privilege principle while granting access to GitHub resources
  Avoid granting unnecessary access to the GitHub resources to avoid possible misconfiguration or exploitation by attackers. Analyze which resources are mandatory to complete the job and grant only those permissions.

workflow-templates/scorecards.yml

• [High]Limit the scopes granted to the token to only what is necessary for the specific functionality
  The token is granted a broad range of scopes which could potentially result in unauthorized access if the token is leaked or misused. As per the principle of least privilege, granting only necessary access should be preferred. Update the scopes granted to the token to only include those that are necessary for the specific functionality. For example, in the current code block, instead of granting all the scope permissions, separate permissions could be granted based on what the token is required for.
• [High]Do not include sensitive information in code
  Sensitive information such as credentials or API keys should never be included in code. As per common security practices, such information should be stored securely in environment variables or other secure storage mechanisms. Remove the sensitive information from the code and store it securely in environment variables or other external storage mechanisms. Update the code to fetch the sensitive information from the new location.
• [Medium]Remove unused code
  Unused code can create confusion and make the code difficult to read. As per the principle of simplicity, removing unused code can improve the quality of the code and make it more readable. Identify and remove any unused code blocks.
• [Medium]Include error handling in the code
  Error handling is necessary to ensure the code is resilient and can handle unexpected errors or edge cases. As per common engineering practices, error handling should be included in the code to make it more reliable. Include error handling in the code to handle unexpected errors or edge cases. For example, adding an exception handler to catch any exceptions that may occur.
• [Medium]Implement input validation before processing user input
  Input validation is a crucial security practice to ensure that user-provided data is safe and will not cause harm to the application. As per the OWASP Top 10, input validation should be implemented to prevent security vulnerabilities. Implement input validation before processing user input. For example, checking for valid input formats, sanitizing user inputs to remove any special characters that could be used for malicious purposes.
• [Low]Use consistent coding conventions
  Consistent coding conventions make the code more readable and maintainable. As per common coding practices, adhering to a consistent coding convention can lead to better code quality. Adopt a consistent coding convention and apply it throughout the codebase.
• [Low]Leverage version control to track and manage code changes
  Using version control allows the developers to track and manage changes to the codebase, making it easier to pinpoint issues and roll back changes if needed. As per common engineering practices, leveraging version control can lead to better code quality and maintainability. Set up version control for the code and start tracking and managing changes accordingly.

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