Add validation for package composer files

[tidal]

• Adds https://github.com/opentelemetry-php/dev-tools as a dev dependency
• Calls package composer validation in CI
• Adds make target for package composer validation

[codecov]

Codecov Report

Merging #687 (0fff0c7) into main (499c58a) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##               main     #687   +/-   ##
=========================================
  Coverage     85.00%   85.00%           
  Complexity     1233     1233           
=========================================
  Files           137      137           
  Lines          2980     2980           
=========================================
  Hits           2533     2533           
  Misses          447      447           

Flag	Coverage Δ
7.4	85.00% <ø> (ø)
8.0	85.05% <ø> (ø)
8.1	85.05% <ø> (ø)

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