chore: bump com.fasterxml.jackson:jackson-bom from 2.20.1 to 2.21.1 (#2403)

* chore: bump com.fasterxml.jackson:jackson-bom from 2.20.1 to 2.21.1

Bumps [com.fasterxml.jackson:jackson-bom](https://github.com/FasterXML/jackson-bom) from 2.20.1 to 2.21.1.
- [Commits](FasterXML/jackson-bom@jackson-bom-2.20.1...jackson-bom-2.21.1)

---
updated-dependencies:
- dependency-name: com.fasterxml.jackson:jackson-bom
  dependency-version: 2.21.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

* Pin GraalVM version in CI to 21.0.8 (temporary fix).

* Add comment why graalvm version was pinned.

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Philipp Page <github@philipp.page>
Co-authored-by: Philipp Page <pagejep@amazon.com>

Author: dependabot[bot]

.github/workflows/check-build.yml

@@ -107,7 +107,8 @@ jobs:
       - name: Setup GraalVM
         uses: graalvm/setup-graalvm@f744c72a42b1995d7b0cbc314bde4bace7ac1fe1 # v1.5.0
         with:
-          java-version: "21"
+          # Pinned to 21.0.8 due to unsafeAllocated enforcement in 21.0.10+. See #2416
+          java-version: "21.0.8"
           distribution: "graalvm"
           cache: maven
       - id: graalvm-native-test

pom.xml

@@ -84,7 +84,7 @@
         <maven.deploy.plugin.version>3.1.2</maven.deploy.plugin.version>
         <log4j.version>2.25.3</log4j.version>
         <slf4j.version>2.0.17</slf4j.version>
-        <jackson.version>2.20.1</jackson.version>
+        <jackson.version>2.21.1</jackson.version>
         <aws.sdk.version>2.41.10</aws.sdk.version>
         <aws.xray.recorder.version>2.20.0</aws.xray.recorder.version>
         <payloadoffloading-common.version>2.2.0</payloadoffloading-common.version>