feat(prover): improve the check for whether the current block still needs a new proof

[davidtaikocha]

No description provided.

[github-actions]

Hive test result:
failed: 0, detail: http://hive.a1.taiko.xyz/?page=v-pills-results-tab&suite=1675867020-d0690b64ff3332cf065ac4e73048489c.json

[github-actions]

Hive test result:
failed: 0, detail: http://hive.a1.taiko.xyz/?page=v-pills-results-tab&suite=1675867877-88bc756e9658def5d016e5d2675c21ff.json

[codecov]

Codecov Report

Merging #145 (b94b750) into main (c8043a1) will increase coverage by 0.33%.
The diff coverage is 17.39%.

@@            Coverage Diff             @@
##             main     #145      +/-   ##
==========================================
+ Coverage   59.97%   60.30%   +0.33%     
==========================================
  Files          33       33              
  Lines        3098     3114      +16     
==========================================
+ Hits         1858     1878      +20     
+ Misses       1004      996       -8     
- Partials      236      240       +4     

Impacted Files	Coverage Δ
prover/prover.go	60.20% <17.39%> (+2.33%)	⬆️
.../chain_syncer/progress_tracker/progress_tracker.go	77.41% <0.00%> (+2.58%)	⬆️

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