chore: increase activation window for new feature

[jansegre]

Motivation

Activation window could be a bit tight since the start is late.

Acceptance Criteria

• Extend from 6 to 10 weeks

Checklist

• If you are requesting a merge into master, confirm this code is production-ready and can be included in future releases as soon as it gets merged

[github-actions]

Bencher Report

Branch	chore/extend-feature-activation
Testbed	ubuntu-22.04

Click to view all benchmark results

Benchmark	Latency	Benchmark Result minutes (m) (Result Δ%)	Lower Boundary minutes (m) (Limit %)	Upper Boundary minutes (m) (Limit %)
sync-v2 (up to 20000 blocks)	📈 view plot 🚷 view threshold	1.83 m (+10.07%) Baseline: 1.66 m	1.50 m (81.77%)	1.99 m (91.72%)

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 85.61%. Comparing base (f0f043a) to head (5ed03c1).
⚠️ Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1370      +/-   ##
==========================================
- Coverage   85.67%   85.61%   -0.06%     
==========================================
  Files         429      429              
  Lines       32439    32439              
  Branches     5068     5068              
==========================================
- Hits        27792    27774      -18     
- Misses       3617     3631      +14     
- Partials     1030     1034       +4     

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