[Snyk] Security upgrade nginx from 1.25.2 to 1.25.3

[avnes]

This PR was automatically created by Snyk using the credentials of a real user.

Keeping your Docker base image up-to-date means you’ll benefit from security fixes in the latest version of your chosen image.

Changes included in this PR

• Dockerfile

We recommend upgrading to nginx:1.25.3, as this image has only 74 known vulnerabilities. To do this, merge this pull request, then verify your application still works as expected.

Some of the most important vulnerabilities in your base image include:

Severity	Priority Score / 1000	Issue	Exploit Maturity
	400	Integer Overflow or Wraparound SNYK-DEBIAN12-LIBXPM-5927176	No Known Exploit
	300	Loop with Unreachable Exit Condition ('Infinite Loop') SNYK-DEBIAN12-LIBXPM-5927179	No Known Exploit
	733	Resource Exhaustion SNYK-DEBIAN12-NGHTTP2-5953379	Mature
	483	Resource Exhaustion SNYK-DEBIAN12-NGINX-5953391	Mature
	571	Integer Overflow or Wraparound SNYK-DEBIAN12-ZLIB-6008963	No Known Exploit

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