Bump software.amazon.awssdk:bom from 2.46.17 to 2.46.21 (#2932)

Bumps software.amazon.awssdk:bom from 2.46.17 to 2.46.21.

---
updated-dependencies:
- dependency-name: software.amazon.awssdk:bom
  dependency-version: 2.46.21
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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tika-parent/pom.xml

@@ -316,7 +316,7 @@
     <!-- dependency versions -->
     <!-- change threetenbp exclusion version -->
     <google.cloud.version>2.69.0</google.cloud.version>
-    <aws2.version>2.46.17</aws2.version>
+    <aws2.version>2.46.21</aws2.version>
     <!-- WARNING: when you upgrade asm make sure that you update the
         OpCode in the initializer in org.apache.tika.parser.asm.XHTMLClassVisitor
         See TIKA-2992.