Fix/gofr telemetry

[Umang01-hash]

Pull Request Template

Description:

• Add optional telemetry exporter for GoFr performance insights
• Introduces lightweight telemetry infrastructure to help improve framework development and provide better user experience. Telemetry collection is disabled by default and can be controlled via GOFR_TELEMETRY_DISABLED environment variable.

Checklist:

• I have formatted my code using goimport and golangci-lint.
• All new code is covered by unit tests.
• This PR does not decrease the overall code coverage.
• I have reviewed the code comments and documentation for clarity.

Thank you for your contribution!

[coolwednesday]

The code looks okay. But we need to also set-up the other side of the telemetry processing that is the endpoint : "https://gofr.dev/telemetry/v1/metrics". Can we add the approach details of how will it work on the other side in the PR description. Add the link to the corresponsing setup PR on the website side(I am supposing here).