release 4.5.3

[david-luna]

• fix(kafkajs): handle kafka tombstone messages #3985

[trentm]

run docs-build

[trentm]

The first docs build failed: https://buildkite.com/elastic/docs-build-pr/builds/63950#018f0c29-45fa-44fe-93d9-34ad9145aab2
Not sure why.

$ ./.buildkite/scripts/build_pr.sh
Cloning the apm-agent-nodejs PR locally
Cloning into './product-repo'...
remote: Enumerating objects: 32, done.
remote: Counting objects: 100% (32/32), done.
remote: Compressing objects: 100% (9/9), done.
remote: Total 19 (delta 14), reused 12 (delta 10), pack-reused 0
Receiving objects: 100% (19/19), 4.24 KiB | 2.12 MiB/s, done.
Resolving deltas: 100% (14/14), completed with 12 local objects.
From https://github.com/elastic/apm-agent-nodejs
 * [new ref]           refs/pull/3986/head -> pr_3986
Switched to branch 'pr_3986'
The following build command will be used
./build_docs --all --target_repo git@github.com:elastic/built-docs --reference /opt/git-mirrors/ --target_branch apm-agent-nodejs_bk_3986 --push --announce_preview https://apm-agent-nodejs_bk_3986.docs-preview.app.elstc.co/diff --keep_hash --sub_dir apm-agent-nodejs:main:./product-repo
🚨 Error: The command exited with status 1

[trentm]

docs build: Same failure the second time. Hrm.

[trentm]

docs build blocked on elastic/docs#2990

[trentm]

run docs-build