ci: clean up and fixes (#5054)

* ci: remove unused helper script

* ci: update CI machine images

Try to fix error a la:

```text
error: failed to solve: failed to solve with frontend dockerfile.v0: failed to solve with frontend gateway.v0: failed to copy: httpReadSeeker: failed open: failed to do request: Get "https://docker-images-prod.s3.dualstack.us-east-1.amazonaws.com/registry-v2/docker/registry/v2/blobs/sha256/...": dial tcp 52.216.28.112:443: i/o timeout
```

See https://discuss.circleci.com/t/increased-rate-of-errors-when-pulling-docker-images-on-machine-executor/42094/9

.circleci/config.yml

@@ -342,7 +342,7 @@ jobs:
     # need a machine executor to have a full-powered docker daemon (the `setup_remote_docker` system just provides a
     # kinda small node)
     machine:
-      image: ubuntu-2004:202111-01
+      image: ubuntu-2004:202201-02
     resource_class: xlarge # use of a smaller executor tends crashes on link
     environment:
       # Disable incremental compilation to avoid overhead. We are not preserving these files anyway.
@@ -442,7 +442,7 @@ jobs:
     # - we only run this job once a day, so the additional startup delay of 30-60s doesn't really matter
     machine:
       # https://circleci.com/docs/2.0/configuration-reference/#available-machine-images
-      image: ubuntu-2004:202107-02
+      image: ubuntu-2004:202201-02
     resource_class: xlarge
     steps:
       - checkout

.circleci/get-deploy-tags.sh

@@ -1,57 +0,0 @@
-#!/usr/bin/env bash
-#
-# Produce a deploy JSON file for a docker image on the host.
-#
-# Usage:
-# 	./get-deploy-tags DOCKER_TAG_NAME
-#
-# For example, if building a docker image with a tag set:
-# 	docker build -t infuxdata.io/iox:awesome
-# or manually tagged:
-# 	docker tag infuxdata.io/iox:build infuxdata.io/iox:awesome:awesome
-#
-# And the image is on the host, executing this script with:
-#	./get-deploy-tags "awesome"
-#
-# Will generate the deployment JSON file and output it to stdout. If
-# IMAGE_PROMOTION_COMMAND is set in the environment, the deployment JSON file is
-# piped to it at the end of execution.
-#
-
-set -euo pipefail
-
-DOCKER_IMAGE_TAG=${1}
-DOCKER_IMAGE="quay.io/influxdb/iox"
-APP_NAME="IOx"
-
-DOCKER_IMAGE_DIGEST="$(docker image inspect "${DOCKER_IMAGE}:${DOCKER_IMAGE_TAG}" --format '{{ if eq (len .RepoDigests) 1 }}{{index .RepoDigests 0}}{{ end }}')"
-
-# validate that only one image with same git sha as tag is present, if not,
-# write an error out and request developers to manually re-run the workflow
-if [ "${DOCKER_IMAGE_DIGEST}" = "" ] ; then
-	echo >&2 "Unable to determine unique SHA256 checksum of images."
-	echo >&2 ""
-	echo >&2 "Please re-run the workflow in CircleCI."
-	exit 1
-fi
-jq --null-input --sort-keys \
-	--arg imgTag "${DOCKER_IMAGE}:${DOCKER_IMAGE_TAG}" \
-	--arg imgDigest "${DOCKER_IMAGE_DIGEST}" \
-	--arg appKey "$APP_NAME" \
-	'{
-		Images: {
-			($appKey): {
-				Tag: $imgTag,
-				Digest: $imgDigest,
-			},
-		},
-		PublishedAt: (now | todateiso8601)
-	}' | tee deploy.json
-
-echo ""
-if [[ -z "${IMAGE_PROMOTION_COMMAND}" ]]; then
-	echo "Skipping image promotion (IMAGE_PROMOTION_COMMAND not set)"
-else
-	echo "Triggering image promotion"
-	eval "${IMAGE_PROMOTION_COMMAND}" < deploy.json
-fi