Updated nginx to 1.21.0

Makefile

 all: nginx-service nginx-logrotate
-	tar xf nginx-1.19.0.tar.gz
-	cd nginx-1.19.0 && ./configure --prefix=/usr --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-log-path=/var/log/nginx/access.log --pid-path=/run/nginx.pid --lock-path=/var/log/nginx.lock --http-client-body-temp-path=/tmp/nginx-client-body --http-proxy-temp-path=/tmp/nginx-proxy-temp --without-http_fastcgi_module --without-http_uwsgi_module --without-http_scgi_module --with-http_ssl_module --with-http_v2_module --with-http_stub_status_module --with-http_realip_module --with-http_auth_request_module
-	$(MAKE) -C nginx-1.19.0
-	$(MAKE) -C nginx-1.19.0 install
+	tar xf nginx-1.21.0.tar.gz
+	cd nginx-1.21.0 && ./configure --prefix=/usr --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-log-path=/var/log/nginx/access.log --pid-path=/run/nginx.pid --lock-path=/var/log/nginx.lock --http-client-body-temp-path=/tmp/nginx-client-body --http-proxy-temp-path=/tmp/nginx-proxy-temp --without-http_fastcgi_module --without-http_uwsgi_module --without-http_scgi_module --with-http_ssl_module --with-http_v2_module --with-http_stub_status_module --with-http_realip_module --with-http_auth_request_module
+	$(MAKE) -C nginx-1.21.0
+	$(MAKE) -C nginx-1.21.0 install
 	@echo "$$NGINX_LOGROTATE" > /etc/logrotate.d/nginx
 	@echo "$$NGINX_SERVICE" > /lib/systemd/system/nginx.service
 	systemctl enable nginx.service
@@ -17,7 +17,7 @@ all: nginx-service nginx-logrotate
 	rm /etc/nginx/scgi_params.default
 	rm /etc/nginx/uwsgi_params
 	rm /etc/nginx/uwsgi_params.default
-	rm -rf nginx-1.19.0
+	rm -rf nginx-1.21.0
 
 nginx-service:
 define NGINX_SERVICE