add debian 12 docker file

Author: tillkruss

.github/workflows/docker.yml

@@ -91,6 +91,7 @@ jobs:
           - centos8/centos8-dnf
           - el9/el9-dnf
           - debian/debian11-apt
+          - debian/debian12-apt
           - ubuntu/ubuntu22-apt
 
     services:

docker/debian/README.md

@@ -7,7 +7,7 @@ These Docker environments are concrete examples of Relay's [installation instruc
 Relay has an APT package compatible with Ondřej’s wonderful `ppa:ondrej/php` repository:
 
 ```bash
-docker build --pull --tag relay-debian-apt --file debian11-apt.Dockerfile .
+docker build --pull --tag relay-debian-apt --file debian12-apt.Dockerfile .
 docker run -it relay-debian-apt bash
 $ php --ri relay
 ```

docker/debian/debian11-apt.Dockerfile

@@ -12,7 +12,7 @@ RUN echo "deb [signed-by=/usr/share/keyrings/ondrej.gpg] https://packages.sury.o
 RUN apt-get update
 
 RUN apt-get install -y \
-  php8.1-fpm
+  php8.2-fpm
 
 # Add Relay repository
 RUN wget -q "https://repos.r2.relay.so/key.gpg" -O- | gpg --dearmor -o /usr/share/keyrings/cachewerk.gpg
@@ -21,7 +21,7 @@ RUN apt-get update
 
 # Install Relay
 RUN apt-get install -y \
-  php8.1-relay
+  php8.2-relay
 
 ## If no specific PHP version is installed just omit the version number:
 

docker/debian/debian12-apt.Dockerfile

@@ -0,0 +1,31 @@
+FROM debian:12
+
+RUN apt-get update
+
+RUN apt-get install -y \
+  wget \
+  gnupg \
+  lsb-release
+
+RUN wget -q "https://packages.sury.org/php/apt.gpg" -O /usr/share/keyrings/ondrej.gpg
+RUN echo "deb [signed-by=/usr/share/keyrings/ondrej.gpg] https://packages.sury.org/php/ $(lsb_release -sc) main" | tee /etc/apt/sources.list.d/ondrej.list > /dev/null
+RUN apt-get update
+
+RUN apt-get install -y \
+  php8.3-fpm
+
+# Add Relay repository
+RUN wget -q "https://repos.r2.relay.so/key.gpg" -O- | gpg --dearmor -o /usr/share/keyrings/cachewerk.gpg
+RUN echo "deb [signed-by=/usr/share/keyrings/cachewerk.gpg] https://repos.r2.relay.so/deb $(lsb_release -sc) main" | tee /etc/apt/sources.list.d/cachewerk.list > /dev/null
+RUN apt-get update
+
+# Install Relay
+RUN apt-get install -y \
+  php8.3-relay
+
+## If no specific PHP version is installed just omit the version number:
+
+# RUN apt-get install -y \
+#  php-dev \
+#  php-fpm \
+#  php-relay