Rename uikitMain to iosMain (JetBrains#2639)

Partially adresses
[CMP-1036](https://youtrack.jetbrains.com/issue/CMP-1036) Align custom
source set names
Second part of JetBrains#2545

## Release Notes
N/A

Author: MatkovIvan

.github/workflows/compose-tests.yml

@@ -87,7 +87,7 @@ jobs:
       - name: Run iOS Utils Tests
         timeout-minutes: 15
         shell: bash
-        working-directory: compose/ui/ui-uikit/src/uikitMain/objc/CMPUIKitUtils
+        working-directory: compose/ui/ui-uikit/src/iosMain/objc/CMPUIKitUtils
         run: |
           xcodebuild test \
             -resultBundlePath TestResults.xcresult \
@@ -100,7 +100,7 @@ jobs:
         if: failure()
         with:
           name: TestResults-${{ github.run_number }}.xcresult
-          path: compose/ui/ui-uikit/src/uikitMain/objc/CMPUIKitUtils/TestResults.xcresult
+          path: compose/ui/ui-uikit/src/iosMain/objc/CMPUIKitUtils/TestResults.xcresult
 
   compose-ios-instrumented-tests:
     runs-on: macos-15-xlarge

compose/foundation/foundation/build.gradle

@@ -137,15 +137,13 @@ if (AndroidXComposePlugin.isMultiplatformEnabled(project)) {
             nativeMain.dependsOn(nonJvmMain)
             webMain.dependsOn(nonJvmMain)
             iosMain {
-                kotlin.srcDir("src/uikitMain/kotlin")
-                resources.srcDir("src/uikitMain/resources")
+                dependsOn(nativeMain)
                 dependencies {
                     implementation(project(":compose:ui:ui-uikit"))
                 }
             }
             iosTest {
-                kotlin.srcDir("src/uikitTest/kotlin")
-                resources.srcDir("src/uikitTest/resources")
+                dependsOn(nativeTest)
             }
             jsMain {
                 dependsOn(webMain)