v3: Update Version Numbers in Docs

[nickajacks1]

Description

Update Go and Fiber version numbers in docs for v3.

Changes Introduced

List the new features or adjustments introduced in this pull request. Provide details on benchmarks, documentation updates, changelog entries, and if applicable, the migration guide.

• Benchmarks: Describe any performance benchmarks and improvements related to the changes.
• Documentation Update: Detail the updates made to the documentation and links to the changed files.
• Changelog/What's New: Include a summary of the additions for the upcoming release notes.
• Migration Guide: If necessary, provide a guide or steps for users to migrate their existing code to accommodate these changes.
• API Alignment with Express: Explain how the changes align with the Express API.
• API Longevity: Discuss the steps taken to ensure that the new or updated APIs are consistent and not prone to breaking changes.
• Examples: Provide examples demonstrating the new features or changes in action.

Type of Change

Please delete options that are not relevant.

• Documentation update (changes to documentation)

Checklist

Before you submit your pull request, please make sure you meet these requirements:

• Followed the inspiration of the Express.js framework for new functionalities, making them similar in usage.
• Conducted a self-review of the code and provided comments for complex or critical parts.
• Updated the documentation in the /docs/ directory for Fiber's documentation.
• Added or updated unit tests to validate the effectiveness of the changes or new features.
• Ensured that new and existing unit tests pass locally with the changes.
• Verified that any new dependencies are essential and have been agreed upon by the maintainers/community.
• Aimed for optimal performance with minimal allocations in the new code.
• Provided benchmarks for the new code to analyze and improve upon.

[gaby]

@gofiber/maintainers go1.20 is EOL since last week. Do we keep it or bump the min version to go1.21 ?

https://endoflife.date/go

[gaby]

I think we can keep 1.20 for now, fasthttp is also moving to 1.20 as their min version. A lot of systems don't support 1.21/1.22 yet

[efectn]

I think we can keep 1.20 for now, fasthttp is also moving to 1.20 as their min version. A lot of systems don't support 1.21/1.22 yet

I think we should just support 2 latest major versions of Go in v3 but let's discuss it later it should not block the PR