fix: use 7.17.22-SNAPSHOT instead of 7.17.22 temporarilly

[kyungeunni]

Motivation/summary

Temporarily use 7.17.22-SNAPSHOT for smoke tests when the desired version is 7.17.22.

Previously the 7.17.22-SNAPSHOT image was broken and now it's fixed. Now the 7.17.22 is broken for the same reason, and more recent build 7.17.22-SNAPSHOT is now working. Until 7.17.22 is properly fixed, we should use 7.17.22-SNAPSHOT.

How to test these changes

(cd testing/smoke/legacy-standalone-major-managed && EC_API_KEY=redacted ./test.sh 7.17)
(cd testing/smoke/legacy-managed && EC_API_KEY=redacted ./test.sh 7.17)

Related issues

#13147

[mergify]

This pull request does not have a backport label. Could you fix it @kyungeunni? 🙏
To fixup this pull request, you need to add the backport labels for the needed
branches, such as:

• backport-7.17 is the label to automatically backport to the 7.17 branch.
• backport-8./d is the label to automatically backport to the 8./d branch. /d is the digit.

NOTE: backport-skip has been added to this pull request.

[marclop]

I think it's not possible to upgrade a non-snapshot version deployment to a snapshot version. Did you check if this would work?

[kyungeunni]

@marclop thanks for pointing this out, it doesn't indeed.

Also, this temporary fix isn't necessary anymore given that there are new builds available. I will close this.