chore(deps): update alpine docker tag to v3.23

docker/mediamtx/Dockerfile

@@ -1,6 +1,6 @@
 FROM bluenviron/mediamtx:1 AS mediamtx
 
-FROM alpine:3.21
+FROM alpine:3.23
 
 RUN apk add --no-cache ca-certificates
 

flv-module/Dockerfile

@@ -1,4 +1,4 @@
-FROM alpine:3.19 AS builder
+FROM alpine:3.23 AS builder
 
 RUN apk add --no-cache \
     build-base \
@@ -15,7 +15,7 @@ RUN apk add --no-cache \
     make -j$(nproc) && make install && \
     rm -rf /nginx-1.26.3.tar.gz /nginx-1.26.3 /nginx-http-flv-module
 
-FROM alpine:3.19
+FROM alpine:3.23
 
 COPY --from=builder /usr/local/nginx /usr/local/nginx