Summary

• bump the Firebase binding package line to 12.10.0
• bump AdamE.Google.iOS.GoogleAppMeasurement to 12.10.0
• update publish metadata, E2E package versions, and publish-facing docs to match the new line
• update analytics tarball download metadata and the Crashlytics upload-symbols source URL for the upstream 12.10.0 release

Why

Firebase Apple SDK 12.10.0 is the next package line. This repo needs the deterministic version/config updates so the bindings, E2E validation, and published package metadata stay aligned with the upstream release.

Validation

• dotnet tool run dotnet-cake -- --target=firebase-release-check --firebase-version=12.10.0
• dotnet test scripts/FirebaseBindingAudit.Tests/FirebaseBindingAudit.Tests.csproj
• scripts/compare-firebase-bindings.sh --output-dir output/firebase-binding-audit-12.10
• tools/e2e/run-firebase-foundation.sh --package-dir output --configuration Debug
• tools/e2e/run-firebase-foundation.sh --package-dir output --configuration Debug --enable-nullability-validation
• tools/e2e/run-firebase-foundation.sh --package-dir output --configuration Debug --binding-surface-target all
• E2E_TIMEOUT_SECONDS=300 tools/e2e/run-firebase-foundation.sh --package-dir output --configuration Debug --runtime-drift-case all

Notes

• binding audit reported 0 unsuppressed failures for the staged 12.10 externals
• full E2E validation passed against the 12.10.0 packages in output/
• public release notes did not indicate additional manual binding work beyond the version/config updates in this PR