Bump Airbyte version from 0.39.8-alpha to 0.39.9-alpha

[octavia-squidington-iii]

IMPORTANT: Only merge if the platform build is passing!

Changelog:

850ff58 Highlight removed and added streams in Connection form (#13392)
94dc191 🐛 Source Amplitude: Fixed JSON Validator date-time validation (#13373)
4fe65c6 🐛 Source Mixpanel: publish v0.1.17 (#13450)
bdeadfc Fixed reverted PR: Fix cancel button when it doesn't provide feedback to the user + UX improvements (#13388)
75e4114 🎉 Source Freshdesk: Added new streams (#13332)
568057a Prepare YamlSeedConfigPersistence for dependency injection (#13384)
0f61411 helm chart: Support nodeSelector, tolerations and affinity on the booloader pod (#11467)
c3170f9 airbyte-api: add jackson model annotations to remove null values from responses (#13370)
d30716a Change stage to beta (#13422)
19a20f0 🐛 Source Google Sheets: Retry on server errors (#13446)
88390f2 Improve kube deploy process. (#13397)
3072298 Helm chart dependencies fix (#13432)
537c9ba 🐛 Source HubSpot: Transform contact_lists data to comply with schema (#13218)
7b7b073 #11758: Source Google Ads to GA (#13441)
faab304 Add more pr actions to tag pull requests (#13437)
a7b6487 Source Google Ads: drop schema field that filters out the data from stream (#13423)
bf0a1c3 Updates error view with new design (#13197)
b5b43d3 Source MSSQL: correct enum Standard method (#13419)
9648a5c Update postgres doc about cdc publication (#13433)
b73713e run source acceptance tests against image built from branch (#13401)

Steps After Merging PR:

1. Pull most recent version of master
2. Run ./tools/bin/tag_version.sh
3. Create a GitHub release with the changelog