Upgrade to org.apache.velocity:velocity-engine-core:2.3

[baulea]

Upgrade to org.apache.velocity:velocity-engine-core:2.3

Fixes Issue

• [x] Which issue or ticket was(will be) fixed in this PR? partially fixes https://github.com/authorjapps/zerocode/issues/607

PR Branch https://github.com/baulea/zerocode/tree/upgrade_velocity-engine-core

Motivation and Context

• upgrade multiple maven dependencies for later Java17 compatibility, Issue https://github.com/authorjapps/zerocode/issues/607
• resolve vulnerability CVE-2020-13936 in org.apache.velocity:velocity:1.7

Checklist:

• [ ] Unit tests added

• [ ] Integration tests added

• [x] Test names are meaningful

• [x] Feature manually tested

• [x] Branch build passed

• [x] No 'package.*' in the imports

• [ ] Relevant Wiki page updated with clear instruction for the end user

  • [x] Not applicable. This was only a refactor change, no functional or behaviour changes were introduced

• [ ] Http test added to http-testing module(if applicable) ?

  • [x] Not applicable. The changes did not affect HTTP automation flow

• [ ] Kafka test added to kafka-testing module(if applicable) ?

  • [x] Not applicable. The changes did not affect Kafka automation flow