Change back question ID length to 8 bytes

[cmsigrist]

Change the ID length of questions during Election create back to 8 bytes.

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

0.0% Coverage
0.0% Duplication

[coveralls]

Pull Request Test Coverage Report for Build 2541007356

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 27 unchanged lines in 2 files lost coverage.
• Overall coverage decreased (-0.5%) to 60.393%

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Files with Coverage Reduction	New Missed Lines	%
services/dkg/pedersen/handler.go	13	84.84%
services/shuffle/neff/handler.go	14	79.63%

Totals
Change from base Build 2535659071:	-0.5%
Covered Lines:	2978
Relevant Lines:	4931

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💛 - Coveralls