Rename master branch references to main

[codeEvolveZenith345]

What this PR does / why we need it:

Updates all references from master to main branch throughout the repository to adopt more inclusive terminology. This includes 400+ files across documentation, CI/CD workflows, configuration files, and all versioned docs (v3.0.0 - v3.22.0).

Which issue this PR fixes: fixes #284

Special notes for your reviewer:

• All master branch references updated to main (except kubectl error logs which are literal error messages)
• After merge, maintainers need to rename the default branch in repository settings and optionally delete the old master branch

Checklist:

• Fixes Rename master to `main' #284
• Signed the commit for DCO to be passed
• Labelled this PR & related issue with documentation tag

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[codeEvolveZenith345]

Hi @PriteshKiri
Sir, I have implemented the issue #284 in this PR, for this I used these commands

# 3. Search for all references to 'master' branch in the codebase
grep -r "master" --exclude-dir=.git --exclude-dir=node_modules .

# 4. Update references to master in documentation and config files
# For markdown files
find . -type f -name "*.md" \
  -not -path "*/node_modules/*" -not -path "*/.git/*" \
  -exec sed -i 's/\/master\//\/main\//g' {} +

find . -type f -name "*.md" \
  -not -path "*/node_modules/*" -not -path "*/.git/*" \
  -exec sed -i 's/branch=master/branch=main/g' {} +

# For YAML/YML files (CI/CD configs)
find . -type f \( -name "*.yml" -o -name "*.yaml" \) \
  -not -path "*/node_modules/*" -not -path "*/.git/*" \
  -exec sed -i 's/master/main/g' {} +

# For JSON files
find . -type f -name "*.json" \
  -not -path "*/node_modules/*" -not -path "*/.git/*" \
  -exec sed -i 's/master/main/g' {} +

# For JavaScript/TypeScript config files
find . -type f \( -name "*.js" -o -name "*.ts" \) \
  -not -path "*/node_modules/*" -not -path "*/.git/*" \
  -exec sed -i 's/\/master\//\/main\//g' {} +
#1. Update docusaurus.config.js - label for unreleased version
sed -i "s/label: 'master\/unreleased'/label: 'main\/unreleased'/g" ./website/docusaurus.config.js

# 2. Update CONTRIBUTING.md - base branch reference
sed -i 's/from where you want to base your work (usually master)/from where you want to base your work (usually main)/g' ./CONTRIBUTING.md

# 3. Update CONTRIBUTING.md - rebase reference
sed -i 's/Rebase to the current master branch/Rebase to the current main branch/g' ./CONTRIBUTING.md

# 4. Verify all 'master' references are resolved (should only show kubectl error logs now)
echo "Final verification..."
grep -r "master" --exclude-dir=.git --exclude-dir=node_modules . | grep -v "mainLogs" | grep -v "Neither --kubeconfig nor --master"

[codeEvolveZenith345]

I hope the commands shared helps you in reviewing,

If there are any mis-aligned implementations, Tell me & I will fix it.

[codeEvolveZenith345]

Hello @PriteshKiri
Sir, please review this PR.

[PriteshKiri]

Hey @codeEvolveZenith345

Could you please take a pull from that latest branch?