Add ARM lease entries for KubernetesConfiguration services and refresh DesktopVirtualization lease (#44242)

* Remove stale Microsoft.DBforPostgreSQL/PostgreSQL/ ARM lease (case-collision fix)

Removes .github/arm-leases/postgresql/Microsoft.DBforPostgreSQL/PostgreSQL/lease.yaml
which case-collides with the sibling PostgreSql/lease.yaml on Windows/macOS
filesystems and is no longer referenced by the spec layout. The lowercase
PostgreSql/ folder matches the service folder casing introduced by
Azure/azure-rest-api-specs-pr#28858 / #43777
(postgresql folder restructure), so keeping PostgreSql/ preserves lease
coverage for that PR while eliminating the case-only duplicate.

Supersedes #43887, which removed the lowercase variant; removing the lowercase
one would re-trigger ARMModelingReviewRequired on the partner restructure PR
because the lease checker looks up the exact-cased path.

* Add ARM leases for KubernetesConfiguration services and refresh DesktopVirtualization lease

* Set DesktopVirtualization lease reviewer to @vikeshi26

---------

Co-authored-by: Vikeshi Tiwari <vikestiwari@microsoft.com>
Co-authored-by: Tejaswi Salaigari <tsalaigari@microsoft.com>

Author: 3 people

.github/arm-leases/desktopvirtualization/Microsoft.DesktopVirtualization/DesktopVirtualization/lease.yaml

@@ -1,5 +1,5 @@
 lease:
   resource-provider: Microsoft.DesktopVirtualization
-  startdate: "2026-05-04"
-  duration: P90D
-  reviewer: "@tejaswiminnu"
+  startdate: "2026-06-26"
+  duration: P180D
+  reviewer: "@vikeshi26"

.github/arm-leases/kubernetesconfiguration/Microsoft.KubernetesConfiguration/kubernetesResources/lease.yaml

@@ -0,0 +1,5 @@
+lease:
+  resource-provider: Microsoft.KubernetesConfiguration
+  startdate: "2026-06-26"
+  duration: P180D
+  reviewer: "@vikeshi26"

.github/arm-leases/kubernetesconfiguration/Microsoft.KubernetesConfiguration/upgradeAssessments/lease.yaml

@@ -0,0 +1,5 @@
+lease:
+  resource-provider: Microsoft.KubernetesConfiguration
+  startdate: "2026-06-26"
+  duration: P180D
+  reviewer: "@vikeshi26"