SEAB-5700: set dateExecuted field for RunExecution

[hyunnaye]

Description
This PR adds the dateExecuted information for the tooltester to upload.

Review Instructions
Review that the dateExecuted field in RunExecuted is correctly set.

Issue
https://ucsc-cgl.atlassian.net/browse/SEAB-5700

Security
If there are any concerns that require extra attention from the security team, highlight them here.

Please make sure that you've checked the following before submitting your pull request. Thanks!

• Check that you pass the basic style checks and unit tests by running mvn clean install in the project that you have modified (until https://ucsc-cgl.atlassian.net/browse/SEAB-5300 adds multi-module support properly)
• Ensure that the PR targets the correct branch. Check the milestone or fix version of the ticket.
• If you are changing dependencies, check with dependabot to ensure you are not introducing new high/critical vulnerabilities
• If this PR is for a user-facing feature, create and link a documentation ticket for this feature (usually in the same milestone as the linked issue). Style points if you create a documentation PR directly and link that instead.

[codecov]

Codecov Report

Patch coverage has no change and project coverage change: -10.36% ⚠️

Comparison is base (d82c92b) 42.66% compared to head (2c044ef) 32.31%.

❗ Current head 2c044ef differs from pull request most recent head 07af7fd. Consider uploading reports for the commit 07af7fd to get more accurate results

Additional details and impacted files

@@              Coverage Diff               @@
##             develop     #472       +/-   ##
==============================================
- Coverage      42.66%   32.31%   -10.36%     
+ Complexity       172      140       -32     
==============================================
  Files             24       24               
  Lines           1596     1597        +1     
  Branches         131      131               
==============================================
- Hits             681      516      -165     
- Misses           877     1053      +176     
+ Partials          38       28       -10     

Flag	Coverage Δ
metricsaggregator	?
toolbackup	?
tooltester	?

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Files Changed	Coverage Δ
...ckstore/tooltester/runWorkflow/WorkflowRunner.java	0.00% <0.00%> (ø)

... and 5 files with indirect coverage changes

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[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

0.0% Coverage
0.0% Duplication