docs: Update go client version in docs and code help

[matthewelwell]

Changes

Update go client version in docs and code help section.

How did you test this code?

n/a - trivial change

[claude]

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Project	Deployment	Actions	Updated (UTC)
flagsmith-frontend-preview	Ready	Preview, Comment	Mar 20, 2026 9:17am
flagsmith-frontend-staging	Ready	Preview, Comment	Mar 20, 2026 9:17am

1 Skipped Deployment

Project	Deployment	Actions	Updated (UTC)
docs	Ignored	Preview	Mar 20, 2026 9:17am

[github-actions]

Docker builds report

Image	Build Status	Security report
ghcr.io/flagsmith/flagsmith-api-test:pr-6954	Finished ✅	Skipped
ghcr.io/flagsmith/flagsmith-e2e:pr-6954	Finished ✅	Skipped
ghcr.io/flagsmith/flagsmith-api:pr-6954	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith:pr-6954	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith-private-cloud:pr-6954	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith-frontend:pr-6954	Finished ✅	Results ✅

[github-actions]

Playwright Test Results (oss - depot-ubuntu-latest-16)

 10 passed

Details

 10 tests across 7 suites
 46.4 seconds
 30bdfa7
 🔄 Run: #15298 (attempt 1)

Playwright Test Results (oss - depot-ubuntu-latest-arm-16)

 10 passed

Details

 10 tests across 7 suites
 53.6 seconds
 30bdfa7
 🔄 Run: #15298 (attempt 1)

Playwright Test Results (private-cloud - depot-ubuntu-latest-arm-16)

 16 passed

Details

 16 tests across 13 suites
 59.9 seconds
 30bdfa7
 🔄 Run: #15298 (attempt 1)

Playwright Test Results (private-cloud - depot-ubuntu-latest-16)

 2 passed

Details

 2 tests across 2 suites
 1 minute, 4 seconds
 30bdfa7
 🔄 Run: #15298 (attempt 1)

Playwright Test Results (oss - depot-ubuntu-latest-16)

 10 passed

Details

 10 tests across 7 suites
 43.1 seconds
 cf43e1b
 🔄 Run: #15399 (attempt 1)

Playwright Test Results (oss - depot-ubuntu-latest-arm-16)

 10 passed

Details

 10 tests across 7 suites
 49.5 seconds
 cf43e1b
 🔄 Run: #15399 (attempt 1)

Playwright Test Results (private-cloud - depot-ubuntu-latest-16)

 2 passed

Details

 2 tests across 2 suites
 45.7 seconds
 cf43e1b
 🔄 Run: #15399 (attempt 1)

Playwright Test Results (private-cloud - depot-ubuntu-latest-arm-16)

 2 passed

Details

 2 tests across 2 suites
 1 minute, 1 second
 cf43e1b
 🔄 Run: #15399 (attempt 1)