Bump jimfs from 1.1 to 1.2 in /distribution/tools/keystore-cli (#2272)

Bumps [jimfs](https://github.com/google/jimfs) from 1.1 to 1.2.
- [Release notes](https://github.com/google/jimfs/releases)
- [Commits](https://github.com/google/jimfs/compare/v1.1...v1.2)

---
updated-dependencies:
- dependency-name: com.google.jimfs:jimfs
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

distribution/tools/keystore-cli/build.gradle

@@ -34,6 +34,6 @@ dependencies {
   compileOnly project(":server")
   compileOnly project(":libs:opensearch-cli")
   testImplementation project(":test:framework")
-  testImplementation 'com.google.jimfs:jimfs:1.1'
+  testImplementation 'com.google.jimfs:jimfs:1.2'
   testRuntimeOnly 'com.google.guava:guava:31.0.1-jre'
 }