chore: Bump version to 11.3.0

[bduranleau-nr]

No description provided.

[newrelic-php-agent-bot]

Test Suite	Status	Result
Multiverse	✅	7/7 passing
SOAK	✅	56/56 passing

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78.50%. Comparing base (2321b9e) to head (0a65db4).

Additional details and impacted files

@@           Coverage Diff           @@
##              dev     #967   +/-   ##
=======================================
  Coverage   78.50%   78.50%           
=======================================
  Files         195      195           
  Lines       27057    27057           
=======================================
  Hits        21241    21241           
  Misses       5816     5816           

Flag	Coverage Δ
agent-for-php-7.2	78.51% <ø> (ø)
agent-for-php-7.3	78.53% <ø> (ø)
agent-for-php-7.4	78.23% <ø> (ø)
agent-for-php-8.0	78.25% <ø> (ø)
agent-for-php-8.1	78.24% <ø> (ø)
agent-for-php-8.2	77.84% <ø> (ø)
agent-for-php-8.3	77.84% <ø> (ø)

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