fix CI

# Conflicts:
#	samples/client/petstore/swift5/nonPublicApi/PetstoreClient/Classes/OpenAPIs/DateWithoutTime.swift

modules/openapi-generator/src/main/resources/swift5/DateWithoutTime.mustache

@@ -15,7 +15,7 @@ import Foundation
 /// an appropriate padding in order to transform to GMT+0 which is the assumed timezone in ISO 8601. 
 /// When decoding, GMT+0 can be assumed (again: ISO8601) so there is no padding necessary and wrappedDate 
 /// can be used safely.
-public struct DateWithoutTime: Codable, Hashable, Equatable {
+{{#nonPublicApi}}internal{{/nonPublicApi}}{{^nonPublicApi}}public{{/nonPublicApi}} struct DateWithoutTime: Codable, Hashable, Equatable {
     {{#nonPublicApi}}internal{{/nonPublicApi}}{{^nonPublicApi}}public{{/nonPublicApi}} let wrappedDate: Date
     {{#nonPublicApi}}internal{{/nonPublicApi}}{{^nonPublicApi}}public{{/nonPublicApi}} let timezone: TimeZone
     

samples/client/petstore/swift5/nonPublicApi/PetstoreClient/Classes/OpenAPIs/DateWithoutTime.swift

@@ -0,0 +1,55 @@
+// DateWithoutTime.swift
+//
+// Generated by openapi-generator
+// https://openapi-generator.tech
+//
+
+import Foundation
+
+/// Represents a date without time information (e.g. a birthday) for transmission from and to a REST API
+///
+/// This type is used as a representation for openapi specs `date` format which does not contain 
+/// time information as opposed to the `date-time` format. Although it internally uses `Date` for 
+/// (de-)serialization as well the generator needs to be able to distinguish between the two formats. 
+/// - note: As `Date` is agnostic to timezones (and calendars), timezone information is needed to be able to add 
+/// an appropriate padding in order to transform to GMT+0 which is the assumed timezone in ISO 8601. 
+/// When decoding, GMT+0 can be assumed (again: ISO8601) so there is no padding necessary and wrappedDate 
+/// can be used safely.
+internal struct DateWithoutTime: Codable, Hashable, Equatable {
+    internal let wrappedDate: Date
+    internal let timezone: TimeZone
+    
+    internal enum CodingKeys: CodingKey, CaseIterable {
+        case wrappedDate
+        case timezone
+    }
+    
+    internal init(from decoder: Decoder) throws {
+        let container = try decoder.singleValueContainer()
+        self.wrappedDate = try container.decode(Date.self)
+        self.timezone = OpenISO8601DateFormatter.withoutTime.timeZone
+    }
+
+    internal init?(wrappedDate: Date?, timezone: TimeZone = .current) {
+        guard let wrappedDate = wrappedDate else {
+            return nil
+        }
+
+        self.init(wrappedDate: wrappedDate, timezone: timezone)
+    }
+
+    internal init(wrappedDate: Date, timezone: TimeZone) {
+        self.wrappedDate = wrappedDate
+        self.timezone = timezone
+    }
+    
+    internal func encode(to encoder: Encoder) throws {
+        var container = encoder.singleValueContainer()
+        try container.encode(OpenISO8601DateFormatter.withoutTime.string(from: normalizedWrappedDate()))
+    }
+
+    internal func normalizedWrappedDate() -> Date {
+        return wrappedDate.addingTimeInterval(
+            Double(timezone.secondsFromGMT(for: wrappedDate)))
+    }
+}