subject: fix missing media type recognition for nydus

[imeoer]

Comprehensive Summary of your change

Nydus images are compatible with both docker scheme v2 and OCI image spec v1 types of config media type:

- application/vnd.oci.image.config.v1+json
- application/vnd.docker.container.image.v1+json

The patch fixes the media type recognition on the accessory type check.

Issue being fixed

Fixes #19452

Please indicate you've done the following:

• Well Written Title and Summary of the PR
• Label the PR as needed. "release-note/ignore-for-release, release-note/new-feature, release-note/update, release-note/enhancement, release-note/community, release-note/breaking-change, release-note/docs, release-note/infra, release-note/deprecation"
• Accepted the DCO. Commits without the DCO will delay acceptance.
• Made sure tests are passing and test coverage is added if needed.
• Considered the docs impact and opened a new docs issue or PR with docs changes if needed in website repository.

[wy65701436]

lgtm

[codecov]

Codecov Report

Merging #19453 (47c6a2e) into main (84a85fb) will decrease coverage by 25.83%.
Report is 1 commits behind head on main.
The diff coverage is n/a.

@@             Coverage Diff             @@
##             main   #19453       +/-   ##
===========================================
- Coverage   70.62%   44.79%   -25.83%     
===========================================
  Files         744      244      -500     
  Lines       95316    13416    -81900     
  Branches        0     2752     +2752     
===========================================
- Hits        67319     6010    -61309     
+ Misses      24356     7100    -17256     
+ Partials     3641      306     -3335     

Flag	Coverage Δ
unittests	44.79% <ø> (-25.83%)	⬇️

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see 988 files with indirect coverage changes

[MinerYang]

lgtm