feat: add otel ready to use image #407

Job	Run time
generate-matrix	3s
PHP FPM 8.1 (arm64)	29s
PHP FPM 8.1 (amd64)	12s
PHP FPM 8.2 (arm64)	32s
PHP FPM 8.2 (amd64)	11s
PHP FPM 8.3 (amd64)	18s
PHP FPM 8.3 (arm64)	32s
Merge FPM Manifest (8.1, 8.1.29, sha256:d25c61d176d62c1929bd1d155fc4073b5d8d0db3f4a2d1ae67f580439...	11s
Merge FPM Manifest (8.2, 8.2.23, sha256:a16bc43404e602adb0f8f9662a1319f83d85daf23110bf7e02152a8a0...	7s
Merge FPM Manifest (8.3, 8.3.11, sha256:421373ae5f16b3afa03506de0ecbb4dcf39e4fe817b2a40b5f5c1f23c...	7s
Build Caddy with 8.1	40s
PHP FPM 8.1 with OpenTelemetry	3m 32s
Build Caddy with 8.2	44s
PHP FPM 8.2 with OpenTelemetry	3m 28s
Build Caddy with 8.3	38s
PHP FPM 8.3 with OpenTelemetry	3m 56s
Test Image	0s
Build Caddy 8.1 with OpenTelemetry	29s
Build Caddy 8.2 with OpenTelemetry	48s
Build Caddy 8.3 with OpenTelemetry	37s
	17m 34s

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