Fix overwritting of execution context

[kashyap-thacker]

Description:

• With Context Vars, fetching the Execution Context and updating it overwritten it.

Type of change:

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist (put x in bracket to check):

Please do not delete options here.

• I have performed a self-review of my code
• Existing unit tests pass locally with my changes
• I have written coverage for new code
• I have updated the Production deployment sheet if this service required production changes in this sprint