Release 2026.2.0-rc2

See https://next.goauthentik.io/docs/releases/2026.2

What's Changed

• website/docs: rac: fixes the property mapping formatting (cherry-pick #20200 to version-2026.2) by @authentik-automation[bot] in #20203
• website/docs: add email verification scope doc (cherry-pick #20141 to version-2026.2) by @authentik-automation[bot] in #20206
• website/docs: ssf: update SSF documentation (cherry-pick #20195 to version-2026.2) by @authentik-automation[bot] in #20211
• ci: fix release testing (cherry-pick #20207 to version-2026.2) by @rissson in #20224
• security: CVE-2026-25922 (2026.2) by @authentik-automation[bot] in #20238
• security: CVE-2026-25748 (2026.2) by @authentik-automation[bot] in #20237
• security: CVE-2026-25227 (2026.2) by @authentik-automation[bot] in #20236
• web: updated package-lock.json to include missing tree-sitter references (cherry-pick #20244 to version-2026.2) by @rissson in #20246

Full Changelog: version/2026.2.0-rc1...version/2026.2.0-rc2