docs: fix change logs from v3.9.3

[wellwelwel]

From:

---

3.9.3 (2024-03-26)

Bug Fixes

• cache: improve cache key serialization (#2424) (0d54b0c)

---

To:

3.9.3 (2024-03-26)

Bug Fixes

• security: improve cache key formation (#2424) (0d54b0c)
  • Fixes a potential parser cache poisoning attack vulnerability reported by Vsevolod Kokorin (Slonser) of Solidlab
• update Amazon RDS SSL CA cert (#2131) (d9dccfd)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.20%. Comparing base (f813a65) to head (beee838).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2532   +/-   ##
=======================================
  Coverage   91.20%   91.20%           
=======================================
  Files          69       69           
  Lines       15547    15547           
  Branches     1330     1330           
=======================================
  Hits        14179    14179           
  Misses       1368     1368           

Flag	Coverage Δ
compression-0	91.20% <ø> (ø)
compression-1	91.20% <ø> (ø)
tls-0	90.71% <ø> (ø)
tls-1	91.02% <ø> (ø)

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