Hide Postgres upgrade for v3 projects (#51024)

## Problem

v3 projects do not support postgres upgrade but the option may appear.

## Solution

Hide the Postgres upgrade for v3 projects

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **Bug Fixes**
* Projects running on AWS Kubernetes no longer display database upgrade
alerts or read-replica warnings in service version settings. Other
upgrade eligibility and warning conditions remain unchanged.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

apps/studio/components/interfaces/Settings/General/ServiceVersions/ServiceVersionsSection.test.tsx

@@ -11,6 +11,7 @@ const {
   mockUseReadReplicas,
   mockUseServiceVersions,
   mockUseUpgradeEligibility,
+  mockIsAwsK8sCloudProvider,
 } = vi.hoisted(() => ({
   mockUseFeatures: vi.fn(),
   mockUseIsOrioleDb: vi.fn(),
@@ -18,6 +19,7 @@ const {
   mockUseReadReplicas: vi.fn(),
   mockUseServiceVersions: vi.fn(),
   mockUseUpgradeEligibility: vi.fn(),
+  mockIsAwsK8sCloudProvider: vi.fn(),
 }))
 
 vi.mock('common', () => ({
@@ -118,6 +120,7 @@ vi.mock('@/hooks/misc/useIsFeatureEnabled', () => ({
 vi.mock('@/hooks/misc/useSelectedProject', () => ({
   useIsOrioleDb: mockUseIsOrioleDb,
   useSelectedProjectQuery: mockUseProject,
+  useIsAwsK8sCloudProvider: mockIsAwsK8sCloudProvider,
 }))
 
 describe('ServiceVersionsSection', () => {
@@ -128,6 +131,7 @@ describe('ServiceVersionsSection', () => {
     })
     mockUseIsOrioleDb.mockReturnValue(false)
     mockUseProject.mockReturnValue({ data: { status: 'ACTIVE_HEALTHY' } })
+    mockIsAwsK8sCloudProvider.mockReturnValue(false)
     mockUseReadReplicas.mockReturnValue({ data: [{ identifier: 'project-ref' }] })
     mockUseUpgradeEligibility.mockReturnValue({
       data: {
@@ -276,4 +280,12 @@ describe('ServiceVersionsSection', () => {
     rerender(<ServiceVersionsSection />)
     expect(screen.getByText('Failed to retrieve versions')).toBeInTheDocument()
   })
+
+  it('does not offer upgrade for v3 projects', () => {
+    mockIsAwsK8sCloudProvider.mockReturnValue(true)
+
+    render(<ServiceVersionsSection />)
+
+    expect(screen.queryByText('Project upgrade available')).not.toBeInTheDocument()
+  })
 })

apps/studio/components/interfaces/Settings/General/ServiceVersions/ServiceVersionsSection.tsx

@@ -34,11 +34,16 @@ import { useProjectUpgradeEligibilityQuery } from '@/data/config/project-upgrade
 import { useProjectServiceVersionsQuery } from '@/data/projects/project-service-versions'
 import { useReadReplicasQuery } from '@/data/read-replicas/replicas-query'
 import { useIsFeatureEnabled } from '@/hooks/misc/useIsFeatureEnabled'
-import { useIsOrioleDb, useSelectedProjectQuery } from '@/hooks/misc/useSelectedProject'
+import {
+  useIsAwsK8sCloudProvider,
+  useIsOrioleDb,
+  useSelectedProjectQuery,
+} from '@/hooks/misc/useSelectedProject'
 
 export const ServiceVersionsSection = () => {
   const { ref } = useParams()
   const { data: project } = useSelectedProjectQuery()
+  const isAwsK8s = useIsAwsK8sCloudProvider()
 
   const { projectAuthAll: authEnabled, projectSettingsDatabaseUpgrades: showDatabaseUpgrades } =
     useIsFeatureEnabled([
@@ -197,7 +202,7 @@ export const ServiceVersionsSection = () => {
                       </>
                     )}
 
-                    {showDatabaseUpgrades && data && data.eligible ? (
+                    {showDatabaseUpgrades && data && data.eligible && !isAwsK8s ? (
                       hasReadReplicas ? (
                         <ReadReplicasWarning latestPgVersion={latestPgVersion} />
                       ) : (