use alpine 3.18 as base and switch to php 8.2

Dockerfile

@@ -72,7 +72,7 @@ RUN mkdir /var/lib/nextcloud/apps/sociallogin
 RUN tar xzf release.tar.gz -C /var/lib/nextcloud/apps/sociallogin --strip 1
 
 
-FROM docker.io/thallian/php8-fpm:3.17
+FROM docker.io/thallian/php8-fpm:3.18
 
 ENV FPMUSER=nginx
 ENV FPMGROUP=nginx
@@ -81,34 +81,34 @@ ENV PHP_MEMORY_LIMIT=512M
 RUN apk add --no-cache \
   nginx \
   ffmpeg \
-  php81-cli \
-  php81-pecl-apcu \
-  php81-opcache \
-  php81-pcntl \
-  php81-ctype \
-  php81-curl \
-  php81-dom \
-  php81-gd \
-  php81-iconv \
-  php81-xml \
-  php81-json \
-  php81-mbstring \
-  php81-openssl \
-  php81-posix \
-  php81-session \
-  php81-simplexml \
-  php81-xmlreader \
-  php81-xmlwriter \
-  php81-zip \
-  php81-zlib \
-  php81-pdo_pgsql \
-  php81-bz2 \
-  php81-fileinfo \
-  php81-intl \
-  php81-exif \
-  php81-bcmath \
-  php81-gmp \
-  php81-imap \
+  php82-cli \
+  php82-pecl-apcu \
+  php82-opcache \
+  php82-pcntl \
+  php82-ctype \
+  php82-curl \
+  php82-dom \
+  php82-gd \
+  php82-iconv \
+  php82-xml \
+  php82-json \
+  php82-mbstring \
+  php82-openssl \
+  php82-posix \
+  php82-session \
+  php82-simplexml \
+  php82-xmlreader \
+  php82-xmlwriter \
+  php82-zip \
+  php82-zlib \
+  php82-pdo_pgsql \
+  php82-bz2 \
+  php82-fileinfo \
+  php82-intl \
+  php82-exif \
+  php82-bcmath \
+  php82-gmp \
+  php82-imap \
 	dcron	
 
 COPY --from=builder --chown=nginx:nginx /var/lib/nextcloud /var/lib/nextcloud