chore: Move to OpenAPI v3.1.2 so UI supports it

Signed-off-by: matiasperrone-exo <matias.perrone@exomindset.co>

Author: matiasperrone-exo

.env.example

@@ -157,4 +157,4 @@ L5_SWAGGER_CONST_AUTH_URL=${IDP_AUTHORIZATION_ENDPOINT}
 L5_SWAGGER_CONST_TOKEN_URL=${IDP_TOKEN_ENDPOINT}
 # L5_FORMAT_TO_USE_FOR_DOCS=yaml
 L5_SWAGGER_GENERATE_ALWAYS=true # Dev setting
-L5_SWAGGER_OPEN_API_SPEC_VERSION=3.2.0
+L5_SWAGGER_OPEN_API_SPEC_VERSION=3.1.2