update catalog management offering instance

[JonWoodlief]

Community Note

• Please vote on this pull request by adding a 👍 reaction to the original pull request comment to help the community and maintainers prioritize this request
• Please do not leave "+1" or other comments that do not add relevant new information or questions, they generate extra noise for pull request followers and do not help prioritize the request

Relates OR Closes #0000

Output from acceptance testing:

--- PASS: TestAccIBMCmOfferingInstance (36.12s)
PASS
ok      github.com/IBM-Cloud/terraform-provider-ibm/ibm (cached)
testing: warning: no tests to run
PASS
ok      github.com/IBM-Cloud/terraform-provider-ibm/ibm/internal/hashcode       (cached) [no tests to run]
testing: warning: no tests to run
PASS
ok      github.com/IBM-Cloud/terraform-provider-ibm/ibm/internal/mutexkv        (cached) [no tests to run]
?       github.com/IBM-Cloud/terraform-provider-ibm/version     [no test files]