feat: add otel ready to use image #398

Job	Run time
generate-matrix	9s
PHP FPM 8.1 on arm64	4h 1m 10s
PHP FPM 8.1 on amd64	17s
PHP FPM 8.2 on arm64	4h 1m 2s
PHP FPM 8.2 on amd64	18s
PHP FPM 8.3 on arm64	4h 1m 3s
PHP FPM 8.3 on amd64	12s
Generate Docker Manifest for PHP 8.1	10s
Generate Docker Manifest for PHP 8.2	9s
Generate Docker Manifest for PHP 8.3	10s
FPM with OpenTelemetry	11s
Build Caddy 8.1	59s
Build Caddy 8.2	1m 33s
Build Caddy 8.3	58s
Build Caddy ${{ matrix.php }} with OpenTelemetry	0s
Test Image	1m 50s
	12h 10m 11s

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