Changes to Update a variable

added the optional property createdByImage to the response with the 200 status

added the optional property createdByName to the response with the 200 status

the key request property's minLength was increased from 0 to 4

added the pattern ^[A-Z][A-Z0-9_]*$ to the request property key

the key request property's maxLength was set to 20

the value request property's maxLength was set to 10000

the key response's property pattern ^[A-Z][A-Z0-9_]*$ was added for the status 200

added the optional property fileName to the response with the 200 status

added the optional property fileSize to the response with the 200 status

added the optional property mimeType to the response with the 200 status

added the optional property projectId to the response with the 200 status

added the optional property type to the response with the 200 status

added the optional property updatedAt to the response with the 200 status

removed the optional property fileName from the response with the 200 status

removed the optional property fileSize from the response with the 200 status

removed the optional property mimeType from the response with the 200 status

removed the optional property projectId from the response with the 200 status

removed the optional property type from the response with the 200 status

removed the optional property updatedAt from the response with the 200 status