feat(rollup-relayer): make chunk & batch proposal intervals configurable

[colinlyguo]

Purpose or design rationale of this PR

This PR makes chunk & batch proposal intervals configurable.

PR title

Your PR title must follow conventional commits (as we are doing squash merge for each PR), so it must start with one of the following types:

• feat: A new feature

Deployment tag versioning

Has tag in common/version.go been updated or have you added bump-version label to this PR?

• Yes

Breaking change label

Does this PR have the breaking-change label?

• No, this PR is not a breaking change

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 53.29%. Comparing base (bfb3c7d) to head (538d7f2).
Report is 4 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #1459   +/-   ##
========================================
  Coverage    53.29%   53.29%           
========================================
  Files          155      155           
  Lines        11770    11770           
========================================
  Hits          6273     6273           
  Misses        5002     5002           
  Partials       495      495           

Flag	Coverage Δ
rollup	56.71% <ø> (ø)

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