MINOR: [Java] Bump org.apache.orc:orc-core from 1.9.2 to 1.9.4 in /java

Bumps org.apache.orc:orc-core from 1.9.2 to 1.9.4.

---
updated-dependencies:
- dependency-name: org.apache.orc:orc-core
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

java/adapter/orc/pom.xml

@@ -61,7 +61,7 @@ under the License.
     <dependency>
       <groupId>org.apache.orc</groupId>
       <artifactId>orc-core</artifactId>
-      <version>1.9.2</version>
+      <version>1.9.4</version>
       <scope>test</scope>
       <exclusions>
         <exclusion>

java/dataset/pom.xml

@@ -130,7 +130,7 @@ under the License.
     <dependency>
       <groupId>org.apache.orc</groupId>
       <artifactId>orc-core</artifactId>
-      <version>1.9.2</version>
+      <version>1.9.4</version>
       <scope>test</scope>
       <exclusions>
         <exclusion>