chore(deps): bump the maven group across 4 directories with 1 update

Bumps the maven group with 1 update in the /unicorn_web/PublicationManagerService directory: org.apache.logging.log4j:log4j-core.
Bumps the maven group with 1 update in the /unicorn_contracts/ContractsService directory: org.apache.logging.log4j:log4j-core.
Bumps the maven group with 1 update in the /unicorn_web/SearchService directory: org.apache.logging.log4j:log4j-core.
Bumps the maven group with 1 update in the /unicorn_approvals/ApprovalsService directory: org.apache.logging.log4j:log4j-core.


Updates `org.apache.logging.log4j:log4j-core` from 2.25.1 to 2.25.3

Updates `org.apache.logging.log4j:log4j-core` from 2.25.1 to 2.25.3

Updates `org.apache.logging.log4j:log4j-core` from 2.25.1 to 2.25.3

Updates `org.apache.logging.log4j:log4j-core` from 2.25.1 to 2.25.3

---
updated-dependencies:
- dependency-name: org.apache.logging.log4j:log4j-core
  dependency-version: 2.25.3
  dependency-type: direct:production
  dependency-group: maven
- dependency-name: org.apache.logging.log4j:log4j-core
  dependency-version: 2.25.3
  dependency-type: direct:production
  dependency-group: maven
- dependency-name: org.apache.logging.log4j:log4j-core
  dependency-version: 2.25.3
  dependency-type: direct:production
  dependency-group: maven
- dependency-name: org.apache.logging.log4j:log4j-core
  dependency-version: 2.25.3
  dependency-type: direct:production
  dependency-group: maven
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

unicorn_approvals/ApprovalsService/pom.xml

@@ -114,7 +114,7 @@
         <dependency>
             <groupId>org.apache.logging.log4j</groupId>
             <artifactId>log4j-core</artifactId>
-            <version>2.25.1</version>
+            <version>2.25.3</version>
         </dependency>
         <dependency>
             <groupId>org.apache.logging.log4j</groupId>

unicorn_contracts/ContractsService/pom.xml

@@ -77,7 +77,7 @@
     <dependency>
       <groupId>org.apache.logging.log4j</groupId>
       <artifactId>log4j-core</artifactId>
-      <version>2.25.1</version>
+      <version>2.25.3</version>
     </dependency>
     <dependency>
       <groupId>org.apache.logging.log4j</groupId>

unicorn_web/PublicationManagerService/pom.xml

@@ -158,7 +158,7 @@
         <dependency>
             <groupId>org.apache.logging.log4j</groupId>
             <artifactId>log4j-core</artifactId>
-            <version>2.25.1</version>
+            <version>2.25.3</version>
         </dependency>
         <dependency>
             <groupId>common</groupId>

unicorn_web/SearchService/pom.xml

@@ -159,7 +159,7 @@
         <dependency>
             <groupId>org.apache.logging.log4j</groupId>
             <artifactId>log4j-core</artifactId>
-            <version>2.25.1</version>
+            <version>2.25.3</version>
         </dependency>
         <dependency>
             <groupId>common</groupId>