Fix of broken API Auth (#8338)

Fix done this morning with @FelixMalfait  from #8295

---------

Co-authored-by: guillim <guillaume@twenty.com>
Co-authored-by: Félix Malfait <felix@twenty.com>

packages/twenty-server/src/engine/core-modules/environment/environment-variables.ts

@@ -137,6 +137,10 @@ export class EnvironmentVariables {
   @IsString()
   APP_SECRET: string;
 
+  @IsOptional()
+  @IsString()
+  ACCESS_TOKEN_SECRET: string;
+
   @IsDuration()
   @IsOptional()
   ACCESS_TOKEN_EXPIRES_IN = '30m';
@@ -394,8 +398,6 @@ export class EnvironmentVariables {
   })
   REDIS_URL: string;
 
-  API_TOKEN_EXPIRES_IN = '100y';
-
   SHORT_TERM_TOKEN_EXPIRES_IN = '5m';
 
   @CastToBoolean()