fix: make azure-identity an optional dependency to reduce dependency footprint

- Changed azure-identity from 'api' to 'compileOnly' in redis-om-spring module
- Added gson as 'compileOnly' since it was previously included transitively
- Added azure-identity as 'compileOnly' to redis-om-spring-ai module
- Updated roms-amr-entraid demo to explicitly include required Azure dependencies

This reduces the dependency footprint for non-Azure users and prevents potential
version conflicts with nimbus-jose-jwt when using maven-enforcer-plugin.

Users requiring Azure Entra ID support need to explicitly add:
- com.azure:azure-identity
- com.google.code.gson:gson

Fixes #652

Author: bsbodden

demos/roms-amr-entraid/build.gradle

@@ -31,6 +31,10 @@ repositories {
 dependencies {
 	implementation project(':redis-om-spring')
 
+	// Azure Identity for Entra ID authentication
+	implementation "com.azure:azure-identity:${azureIdentityVersion}"
+	implementation "com.google.code.gson:gson"
+
 	// Important for RedisOM annotation processing!
 	annotationProcessor project(':redis-om-spring')
 	testAnnotationProcessor project(':redis-om-spring')

redis-om-spring-ai/build.gradle

@@ -8,6 +8,7 @@ dependencies {
 	compileOnly "jakarta.websocket:jakarta.websocket-client-api"
 	implementation "org.springframework.ai:spring-ai-ollama:${springAiVersion}"
 	implementation "org.springframework.ai:spring-ai-azure-openai:${springAiVersion}"
+	compileOnly "com.azure:azure-identity:${azureIdentityVersion}"
 	implementation "org.springframework.ai:spring-ai-vertex-ai-embedding:${springAiVersion}"
 	implementation "org.springframework.ai:spring-ai-bedrock:${springAiVersion}"
 	implementation "org.springframework.ai:spring-ai-transformers:${springAiVersion}"

redis-om-spring/build.gradle

@@ -10,7 +10,8 @@ dependencies {
 	api "jakarta.persistence:jakarta.persistence-api"
 	api "com.fasterxml.jackson.core:jackson-databind"
 	api "redis.clients:jedis"
-	api "com.azure:azure-identity:${azureIdentityVersion}"
+	compileOnly "com.azure:azure-identity:${azureIdentityVersion}"
+	compileOnly "com.google.code.gson:gson"
 	api "com.google.guava:guava:${guavaVersion}"
 	api "com.github.f4b6a3:ulid-creator:${ulidVersion}"
 	api "org.apache.commons:commons-lang3"