Refa: Use longer version tags to indicate filewriter versions in NeXus files

[danesss]

Issue

Filewriter tags mnexus files with its own version: "kafka-to-nexus commit HEAD-1d"

Description of work

Increase tag length for easier identification of commits

Checklist

• [ ] Changes have been documented in changes.md

[cow-bot]

Code Coverage (Lines Exec Cover) TOTAL 5626 3791 67% For more detail see Cobertura report in Jenkins interface

[cow-bot]

Code Coverage (Lines Exec Cover) TOTAL 5626 3786 67% For more detail see Cobertura report in Jenkins interface