Update HaplotypeCaller_GATK4_VCF to use MEM_SIZE and MEM_UNIT

[nikellepetrillo]

Description

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Checklist

If you can answer "yes" to the following items, please add a checkmark next to the appropriate checklist item(s) and notify our WARP team by tagging @broadinstitute/warp-admins in a comment on this PR.

• Did you add inputs, outputs, or tasks to a workflow?
• Did you modify, delete or move: file paths, file names, input names, output names, or task names?
• If you made a changelog update, did you update the pipeline version number?

[github-actions]

Remember to squash merge!

[github-actions]

🔍Version Validation Results:

Comparing versions and changelogs for pipelines that differ from the versions on 'origin/staging':
ReblockGVCF.wdl has not been changed and needs updating
ExomeGermlineSingleSample.wdl has not been changed and needs updating
WholeGenomeGermlineSingleSample.wdl has not been changed and needs updating
UltimaGenomicsWholeGenomeGermline.wdl has not been changed and needs updating
VariantCalling.wdl has not been changed and needs updating
UltimaGenomicsWholeGenomeCramOnly.wdl has not been changed and needs updating
BroadInternalUltimaGenomics.wdl has not been changed and needs updating
ExternalExomeReprocessing.wdl has not been changed and needs updating
ExternalWholeGenomeReprocessing.wdl has not been changed and needs updating
ExomeReprocessing.wdl has not been changed and needs updating
WholeGenomeReprocessing.wdl has not been changed and needs updating
Some WDLs or changelog files need updating. See output for details.
validation_failed

[github-actions]

🔍Changelog Validation Results:

Comparing changelogs for pipelines that differ from the versions on 'origin/develop':
ReblockGVCF.changelog.md has not been changed and needs to be updated
ExomeGermlineSingleSample.changelog.md has not been changed and needs to be updated
WholeGenomeGermlineSingleSample.changelog.md has not been changed and needs to be updated
UltimaGenomicsWholeGenomeGermline.changelog.md has not been changed and needs to be updated
VariantCalling.changelog.md has not been changed and needs to be updated
UltimaGenomicsWholeGenomeCramOnly.changelog.md has not been changed and needs to be updated
BroadInternalUltimaGenomics.changelog.md has not been changed and needs to be updated
ExternalExomeReprocessing.changelog.md has not been changed and needs to be updated
ExternalWholeGenomeReprocessing.changelog.md has not been changed and needs to be updated
ExomeReprocessing.changelog.md has not been changed and needs to be updated
WholeGenomeReprocessing.changelog.md has not been changed and needs to be updated
Some changelog files need updating. See output for details.
validation_failed

[github-actions]

Remember to squash merge!

[github-actions]

🔍Version Validation Results:

Comparing versions and changelogs for pipelines that differ from the versions on 'origin/staging':
All WDLs and changelog files appear to be valid for this release.

[github-actions]

🔍Changelog Validation Results:

Comparing changelogs for pipelines that differ from the versions on 'origin/develop':
All changelog files are valid for this release.

[github-actions]

Remember to squash merge!

[github-actions]

🔍Version Validation Results:

Comparing versions and changelogs for pipelines that differ from the versions on 'origin/staging':
All WDLs and changelog files appear to be valid for this release.

[github-actions]

🔍Changelog Validation Results:

Comparing changelogs for pipelines that differ from the versions on 'origin/develop':
All changelog files are valid for this release.