update pangolin 4.2 dockerfile to use pdata 1.18.1.1

[kapsakcj]

Also bumped dockerfile.version to 3 (since I forgot to bump on last iteration). This fixes a bug when using pangolin --use-assignment-cache mode with very recent samples (i.e. brand new lineages). More info here:

https://github.com/cov-lineages/pangolin-data/releases/tag/v1.18.1.1
cov-lineages/pangolin-data#35

I'm happy to trigger the deploy workflow. Planning to use the docker image name and tag staphb/pangolin:4.2-pdata-1.18.1.1 and overwrite :latest

Pull Request (PR) checklist:

• Include a description of what is in this pull request in this message.
• The dockerfile successfully builds to a test target for the user creating the PR. (i.e. docker build --tag samtools:1.15test --target test docker-builds/samtools/1.15 )
• Directory structure as name of the tool in lower case with special characters removed with a subdirectory of the version number (i.e. spades/3.12.0/Dockerfile)
  • (optional) All test files are located in same directory as the Dockerfile (i.e. shigatyper/2.0.1/test.sh)
• Create a simple container-specific README.md in the same directory as the Dockerfile (i.e. spades/3.12.0/README.md)
  • If this README is longer than 30 lines, there is an explanation as to why more detail was needed
• Dockerfile includes the recommended LABELS
• Main README.md has been updated to include the tool and/or version of the dockerfile(s) in this PR
• Program_Licenses.md contains the tool(s) used in this PR and has been updated for any missing

[erinyoung]

Sorry for not noticing the lack of Dockerfile version in the last PR!

I don't have any comments. I'm going to merge this PR, but I'll let you deploy to dockerhub and quay.

[kapsakcj]

TY! workflow is running now: https://github.com/StaPH-B/docker-builds/actions/runs/4266180786