[Bug Fix] Allow Json Keys with spaces in the placeholders

[ruben-mathews]

Pull Request type

• Bugfix
• Feature
• Refactoring (no functional changes, no api changes)
• Build related changes
• WHOSUSING.md
• Other (please describe):

NOTE: Please remember to run ./gradlew spotlessApply to fix any format violations.

Changes in this PR

Describe the new behavior from this PR, and why it's needed
Issue # #551

• Current the spaces for json keys are not causing validation exception when creating/updating the workflow def.
• Since we are using json path to resolve the paths, we are compiling and checking if the paths is right one.

Alternatives considered

Describe alternative implementation you have considered

• There is an alternative to remove the whitespace check. however this may start allowing users to provide invalid paths

[ssesha]

@v1r3n can help with this?

[ssesha]

Can help with this review? @jeffbulltech @v1r3n

[Sreevani871]

any update on this @v1r3n ?

[ruben-mathews]

@v1r3n Could help in merging this pr?