[airflow] replace typo "security_managr" as "security_manager" (AIR303)

[Lee-W]

Summary

Replace typo "security_managr" in AIR303 as "security_manager"

Test Plan

a test fixture has been updated

[github-actions]

ruff-ecosystem results

Linter (stable)

ℹ️ ecosystem check encountered linter errors. (no lint changes; 1 project error)

apache/superset (error)

ruff check --no-cache --exit-zero --ignore RUF9 --no-fix --output-format concise --no-preview --select ALL

Failed to clone apache/superset: error: RPC failed; HTTP 500 curl 22 The requested URL returned error: 500
fatal: expected 'packfile'

Linter (preview)

ℹ️ ecosystem check encountered linter errors. (no lint changes; 1 project error)

astropy/astropy (error)

ruff check --no-cache --exit-zero --ignore RUF9 --no-fix --output-format concise --preview

Failed to pull: error: RPC failed; HTTP 500 curl 22 The requested URL returned error: 500
fatal: expected flush after ref listing