Add tzdata to optional

optional/clamav/Dockerfile

@@ -2,7 +2,7 @@ ARG DISTRO=alpine:3.14.2
 FROM $DISTRO
 # python3 shared with most images
 RUN apk add --no-cache \
-    python3 py3-pip bash \
+    python3 py3-pip bash tzdata \
   && pip3 install --upgrade pip
 # Image specific layers under this line
 RUN apk add --no-cache clamav rsyslog wget clamav-libunrar

optional/fetchmail/Dockerfile

@@ -3,7 +3,7 @@ FROM $DISTRO
 
 # python3 shared with most images
 RUN apk add --no-cache \
-    python3 py3-pip bash \
+    python3 py3-pip bash tzdata \
   && pip3 install --upgrade pip
 
 # Image specific layers under this line

optional/postgresql/Dockerfile

@@ -2,7 +2,7 @@ ARG DISTRO=alpine:3.14.2
 FROM $DISTRO
 # python3 shared with most images
 RUN apk add --no-cache \
-    python3 py3-pip bash py3-multidict \
+    python3 py3-pip bash py3-multidict tzdata \
   && pip3 install --upgrade pip
 
 # Shared layer between nginx, dovecot, postfix, postgresql, rspamd, unbound, rainloop, roundcube

optional/radicale/Dockerfile

@@ -3,7 +3,7 @@ FROM $DISTRO
 
 # python3 shared with most images
 RUN apk add --no-cache \
-    python3 py3-pip bash \
+    python3 py3-pip bash tzdata \
   && pip3 install --upgrade pip
 
 # Image specific layers under this line

optional/traefik-certdumper/Dockerfile

@@ -1,6 +1,6 @@
 FROM ldez/traefik-certs-dumper
 
-RUN apk --no-cache add inotify-tools util-linux bash
+RUN apk --no-cache add inotify-tools util-linux bash tzdata
 
 COPY run.sh /
 

optional/unbound/Dockerfile

@@ -2,7 +2,7 @@ ARG DISTRO=alpine:3.14.2
 FROM $DISTRO
 # python3 shared with most images
 RUN apk add --no-cache \
-    python3 py3-pip git bash py3-multidict \
+    python3 py3-pip git bash py3-multidict tzdata \
   && pip3 install --upgrade pip
 
 # Shared layer between nginx, dovecot, postfix, postgresql, rspamd, unbound, rainloop, roundcube