Small Naming Bug Related To Kendra Index if Prefix has length 10 or 14

[wolfman-numba1]

According to the getName Util function, the name for resources is created using the following:

${prefix}-${value}

Any Kendra Indexes will fail to create if a prefix provided by a customer is of length 14 or 10 (if CMKs are selected via the config).

If a prefix of length 10 is used then the output name will be

0123456789-cmk-genaichatbot-workspaces and then shortened by the getName function to be: 1234567891-cmk-genaichatbot-

(which ends in a hyphen and results in the following error for the Kendra Index: "Invalid request provided: 1 validation error detected: Value 'qld-titles-cmk-genaichatbot-' at 'indexName' failed to satisfy constraint: Member must satisfy regular expression pattern: ^a-zA-Z0-9* (Service: Kendra, Status Code: 400, Request ID: 53513ed9-21ba-42f3-a7c5-8cae39dfd6a0)"

Similar will happen for any prefixes provided by customers of length 14:

01234567890123-genaichatbot-workspaces and then shortened by the getName function to be: 01234567890123-genaichatbot-
causing the same above error again.