update dependencies and bump version to 0.1.7+45

- Bump version to `0.1.7+45` and update SDK constraint to `>=3.8.0 <4.0.0`.
- Update numerous dependencies

lib/state/app/modules/holidays/bloc/holidays_state.dart

@@ -5,7 +5,7 @@ part 'holidays_state.freezed.dart';
 part 'holidays_state.g.dart';
 
 @freezed
-class HolidaysState with _$HolidaysState {
+abstract class HolidaysState with _$HolidaysState {
   const factory HolidaysState({
     required bool showPastHolidays,
     required bool showDisclaimer,
@@ -16,7 +16,7 @@ class HolidaysState with _$HolidaysState {
 }
 
 @freezed
-class Holiday with _$Holiday {
+abstract class Holiday with _$Holiday {
   const factory Holiday({
     required String start,
     required String end,