Added tzdata package for most of images

Dockerfiles/web-apache-mysql/alpine/Dockerfile

@@ -31,6 +31,7 @@ COPY ["conf/etc/", "/etc/"]
 
 RUN set -eux && \
     INSTALL_PKGS="bash \
+            tzdata \
             apache2 \
             curl \
             mariadb-client \

Dockerfiles/web-apache-mysql/centos/Dockerfile

@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1
+# syntax=docker/dockerfile:1c
 ARG MAJOR_VERSION=7.0
 ARG ZBX_VERSION=${MAJOR_VERSION}
 ARG BUILD_BASE_IMAGE=zabbix-build-mysql:centos-${ZBX_VERSION}

Dockerfiles/web-apache-mysql/ubuntu/Dockerfile

@@ -33,6 +33,7 @@ RUN --mount=type=cache,target=/var/lib/apt/,sharing=locked \
     set -eux && \
     echo "#!/bin/sh\nexit 101" > /usr/sbin/policy-rc.d && \
     INSTALL_PKGS="bash \
+            tzdata \
             apache2 \
             curl \
             libapache2-mod-php \