v2.5.0-prerelease1

Commits

• cbeaf33: java 17, spring 2.7 and minor dependencies (Daniel Gstöhl) #315
• 472a887: update workshops for jva17 (Daniel Gstöhl) #315
• 1c02242: quick fix for spring circular dependency (Daniel Gstöhl) #315
• 344303a: fix dependency versions and testing certs (Daniel Gstoehl) #315
• 8cf9f2e: update jacoco (Daniel Gstoehl) #315