CI: Upgrade nginx to version 1.27.3

Author: kleisauke

.github/workflows/ci.yml

@@ -14,7 +14,7 @@ jobs:
       matrix:
         include:
           - os: ubuntu-24.04
-            nginx-version: 1.27.1
+            nginx-version: 1.27.3
 
     steps:
       - name: Checkout repository

README.md

@@ -66,13 +66,13 @@ ___location = /quota {
 
 You can install this module manually by recompiling the standard Nginx core as follows:
 
-1. Grab the nginx source code from [nginx.org](https://nginx.org) (this module is tested on version 1.27.1).
+1. Grab the nginx source code from [nginx.org](https://nginx.org) (this module is tested on version 1.27.3).
 2. Clone this repository into a newly created directory (for e.g. `./rate-limit-nginx-module`)
 3. Build the nginx source with this module:
 ```bash
-wget https://nginx.org/download/nginx-1.27.1.tar.gz
-tar -xzvf nginx-1.27.1.tar.gz
-cd nginx-1.27.1/
+wget https://nginx.org/download/nginx-1.27.3.tar.gz
+tar -xzvf nginx-1.27.3.tar.gz
+cd nginx-1.27.3/
 
 git clone https://github.com/weserv/rate-limit-nginx-module rate-limit-nginx-module