📌 Pin sdk-release for image build #15037

Job	Run time
Set up docker build 'dynamic' env variables	1s
Build and check documentation	2m 42s
End-to-end tests, chromium	13m 36s
End-to-end tests, firefox	16m 49s
Run the Django test suite	8m 10s
Run the Django test suite in reverse	6m 14s
End-to-end tests, webkit	12m 30s
docker_build (production) / Build image	2m 44s
docker_build (extensions, token_exchange,prefill_haalcentraalhr, all-extensions-) / Build image	2m 44s
Simulate upgrading instances (2.8.2)	1m 30s
Scan docker image	2m 26s
Check for unexepected OAS changes	4s
Generate Postman collection from OAS	13s
Validate OAS	14s
Generate SDKs from OAS	40s
Push Docker image (production)	49s
Push Docker image (extensions, all-extensions-)	1m 4s
update-docker-readme / Generate and update Docker Hub description	20s
	1h 12m 50s

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