This updates the `github.com/eggsampler/acme` dependency used in our Go-based
integration tests to v3. Notably this fixes a data race we encountered in CI.
With the data race fixed this branch can also revert
54a798b7f6 and resolve
https://github.com/letsencrypt/boulder/issues/4542
I ran a `go mod tidy` to cleanup the old `v2` copy of the dep and it also
removed a few stale cfssl/mysql items from the `go.mod`.
Upstream library's tests are confirmed to pass:
```
~/go/src/github.com/eggsampler/acme$ git log --pretty=format:'%h' -n 1
b581dc6
~/go/src/github.com/eggsampler/acme$ make pebble
mkdir -p /home/daniel/go/src/github.com/letsencrypt/pebble
git clone --depth 1 https://github.com/letsencrypt/pebble.git /home/daniel/go/src/github.com/letsencrypt/pebble \
|| (cd /home/daniel/go/src/github.com/letsencrypt/pebble; git checkout -f master && git reset --hard HEAD && git pull -q)
fatal: destination path '/home/daniel/go/src/github.com/letsencrypt/pebble' already exists and is not an empty directory.
Already on 'master'
Your branch is up-to-date with 'le/master'.
HEAD is now at 6c2d514 wfe: compare Identifier.Type with acme.IndentifierIP (#287)
docker-compose -f /home/daniel/go/src/github.com/letsencrypt/pebble/docker-compose.yml up -d
Creating network "pebble_acmenet" with driver "bridge"
Creating pebble_challtestsrv_1 ... done
Creating pebble_pebble_1 ... done
while ! wget --delete-after -q --no-check-certificate "https://localhost:14000/dir" ; do sleep 1 ; done
go clean -testcache
go test -race -coverprofile=coverage_18.txt -covermode=atomic github.com/eggsampler/acme/v3
ok github.com/eggsampler/acme/v3 24.292s coverage: 83.0% of statements
docker-compose -f /home/daniel/go/src/github.com/letsencrypt/pebble/docker-compose.yml down
Stopping pebble_pebble_1 ... done
Stopping pebble_challtestsrv_1 ... done
Removing pebble_pebble_1 ... done
Removing pebble_challtestsrv_1 ... done
Removing network pebble_acmenet
```
dependabot[bot]
Daniel McCarney