Add lsp4j dependency to amazonq shared module for 2025.3

The shared module needs explicit lsp4j dependency as it's not
inherited from parent module in 2025.3 dependency resolution.

Author: aseemxs

plugins/amazonq/shared/jetbrains-community/build.gradle.kts

@@ -23,6 +23,7 @@ dependencies {
     // CodeWhispererTelemetryService uses a CircularFifoQueue
     implementation(libs.commons.collections)
     implementation(libs.nimbus.jose.jwt)
+    implementation(libs.lsp4j)
 
     testFixturesApi(testFixtures(project(":plugin-core:jetbrains-community")))
 }