Update dependencies and cleanup misc version management

- Extract common dependency versions to properties in root pom
  - Added jsoup.version property
  - Added mockk-jvm.version property
  - Added neo4j-cypher-dsl-bom.version property
- Update dependency versions:
  - djl from 0.30.0 to 0.32.0
  - oci-sdk from 3.51.0 to 3.63.1
  - azure-identity from 1.14.0 to 1.15.4
- Remove hardcoded versions for consistency
- Minor polishing

Signed-off-by: Soby Chacko <soby.chacko@broadcom.com>

vector-stores/spring-ai-azure-cosmos-db-store/pom.xml

@@ -50,7 +50,7 @@
 		<dependency>
 			<groupId>com.azure</groupId>
 			<artifactId>azure-identity</artifactId>
-			<version>1.15.4</version> <!-- or the latest version -->
+			<version>${azure-identity.version}</version> <!-- or the latest version -->
 		</dependency>
 		<dependency>
 			<groupId>org.springframework.ai</groupId>

vector-stores/spring-ai-gemfire-store/pom.xml

@@ -91,7 +91,6 @@
         <dependency>
             <groupId>org.awaitility</groupId>
             <artifactId>awaitility</artifactId>
-            <version>3.0.0</version>
             <scope>test</scope>
         </dependency>
 		<dependency>

vector-stores/spring-ai-mongodb-atlas-store/pom.xml

@@ -73,7 +73,8 @@
             <groupId>org.testcontainers</groupId>
             <artifactId>junit-jupiter</artifactId>
             <scope>test</scope>
-        </dependency><dependency>
+        </dependency>
+		<dependency>
             <groupId>org.testcontainers</groupId>
             <artifactId>mongodb</artifactId>
 			<version>1.20.2</version>

vector-stores/spring-ai-neo4j-store/pom.xml

@@ -46,7 +46,7 @@
 			<dependency>
 				<groupId>org.neo4j</groupId>
 				<artifactId>neo4j-cypher-dsl-bom</artifactId>
-				<version>2024.5.1</version>
+				<version>${neo4j-cypher-dsl-bom.version}</version>
 				<type>pom</type>
 				<scope>import</scope>
 			</dependency>