feature/1921 support refresh for journeys (transactional + multi-step)

[JoernBerkefeld]

PR details

What changes did you make? (Give an overview)

• closes [FEATURE] support refresh for journeys (transactional + multi-step) #1921

Further details (optional)

...

Checklist

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• test scripts updated
• Wiki updated (if applicable)

[github-actions]

Coverage Report

Commit:b1a004b
Base: develop@d31857c

Type	Base	This PR
Total Statements Coverage	69.46%	69.2%  (-0.26%)
Total Branches Coverage	68.96%	68.97%  (+0.01%)
Total Functions Coverage	81.87%	81.63%  (-0.24%)
Total Lines Coverage	69.46%	69.2%  (-0.26%)

Details (changed files):

File	Statements	Branches	Functions	Lines
lib/cli.js	0%	0%	0%	0%
lib/index.js	71.77%	64.3%	72.72%	71.77%
lib/metadataTypes/Journey.js	53.95%	59.44%	69.56%	53.95%
lib/metadataTypes/MetadataType.js	83.4%	79.95%	76.82%	83.4%
lib/metadataTypes/TriggeredSend.js	57.16%	48.48%	63.63%	57.16%