chore(deps): update dependency openstack-image-manager to v0.20261006.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
openstack-image-manager	==0.20261001.0 → ==0.20261006.0

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Release Notes

osism/openstack-image-manager (openstack-image-manager)

v0.20261006.0

Compare Source

v0.20261005.0

Compare Source

Added

• Add --verify-checksum option to download and verify every image against its checksum before import (#​1290)

Changed

• Retire the previous multi image in a single Glance update so a failed request cannot leave it half-retired (#​1300)
• Make min_disk optional in image definitions, deriving it from the image's virtual size (#​1293)

Fixed

• Demote a superseded generic image to oldgeneric on rotation when a public successor would otherwise duplicate it (#​1276, #​1300)
• Accept oldgeneric as an os_purpose value in image definitions (#​1300)
• Verify the upstream checksum of latest versions before import and match checksums files by exact filename (#​1290)
• Raise min_disk to the virtual size of the image so Nova can boot it (#​1293)

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