Update generator version in manual cli example

[at15]

Motivation

This solves the missing import issue described in #755

Modifications

Update the version of generator inMakefile
Updated runtime versions to latest released version

Result

Solved the is not available due to missing import of defining module 'Foundation' issue

 13 | //===----------------------------------------------------------------------===//
 14 | import OpenAPIKit
 15 |
    | `- note: add import of module 'Foundation'
 16 | /// Represents a server variable and the function of generation that should be applied.
 17 | protocol ServerVariableGenerator {
    :
166 |             self.key = key
167 |             swiftSafeKey = context.safeNameGenerator.swiftMemberName(for: key)
168 |             enumName = context.safeNameGenerator.swiftTypeName(for: key.localizedCapitalized)
    |                                                                         `- error: property 'localizedCapitalized' is not available due to missing import of defining module 'Foundation'
169 |             self.variable = variable
170 |             self.enumValues = enumValues
/Volumes/w/src/github.com/apple/swift-openapi-generator/Examples/manual-generation-generator-cli-example/.swift-openapi-generator/Sources/_OpenAPIGeneratorCore/Translator/TypesTranslator/translateServersVariables.swift:168:73: error: property 'localizedCapitalized' is not available due to missing import of defining module 'Foundation'
 13 | //===----------------------------------------------------------------------===//
 14 | import OpenAPIKit

Test Plan

Passed locally, make generate and swift run.

[simonjbeaumont]

Thank you @at15 🙏