feat: Add eth merge pause flag (to main) (backport #376)

[mergify]

This is an automatic backport of pull request #376 done by Mergify.
Cherry-pick of 8b19cf8 has failed:

On branch mergify/bp/release/v1.x.x/pr-376
Your branch is up to date with 'origin/release/v1.x.x'.

You are currently cherry-picking commit 8b19cf8.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   .mergify.yml
	modified:   cmd/peggo/flags.go
	modified:   cmd/peggo/orchestrator.go
	modified:   orchestrator/eth_event_watcher.go
	modified:   orchestrator/eth_event_watcher_test.go
	modified:   orchestrator/main_loops.go
	modified:   orchestrator/oracle_resync_test.go
	modified:   orchestrator/orchestrator.go

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   CHANGELOG.md

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/github/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

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[codecov-commenter]

Codecov Report

Merging #377 (c7dc1cc) into release/v1.x.x (e086b3a) will decrease coverage by 0.12%.
The diff coverage is 14.28%.

@@                Coverage Diff                 @@
##           release/v1.x.x     #377      +/-   ##
==================================================
- Coverage           57.81%   57.68%   -0.13%     
==================================================
  Files                  17       17              
  Lines                2041     2049       +8     
==================================================
+ Hits                 1180     1182       +2     
- Misses                758      763       +5     
- Partials              103      104       +1     

Impacted Files	Coverage Δ
orchestrator/main_loops.go	7.44% <0.00%> (-0.02%)	⬇️
orchestrator/eth_event_watcher.go	76.71% <16.66%> (-1.70%)	⬇️
orchestrator/orchestrator.go	88.46% <100.00%> (+0.46%)	⬆️