Bump GNU Health to 3.6.4

lxc-apps/gnuhealth/app

@@ -1,5 +1,5 @@
 {
-    "version": "3.6.3-200621",
+    "version": "3.6.4-200621",
     "meta": {
         "title": "GNU Health",
         "desc-cs": "Lékařské záznamy pacientů",
@@ -8,7 +8,7 @@
     },
     "containers": {
         "gnuhealth": {
-            "image": "gnuhealth_3.6.3-200621",
+            "image": "gnuhealth_3.6.4-200621",
             "depends": [
                 "gnuhealth-postgres"
             ],

lxc-apps/gnuhealth/image

@@ -1,4 +1,4 @@
-IMAGE gnuhealth_3.6.3-200621
+IMAGE gnuhealth_3.6.4-200621
 FROM alpine3.11-python3.8_3.8.2-200621
 
 RUN EOF
@@ -9,7 +9,7 @@ RUN EOF
     apk --no-cache add --virtual .deps build-base git libffi-dev libjpeg-turbo-dev libxml2-dev libxslt-dev ncurses npm patch postgresql-dev python3-dev sudo
 
     # Download GNU Health
-    wget http://ftp.gnu.org/gnu/health/gnuhealth-3.6.3.tar.gz -O - | tar xzf - -C /srv
+    wget http://ftp.gnu.org/gnu/health/gnuhealth-3.6.4.tar.gz -O - | tar xzf - -C /srv
     mv /srv/gnuhealth-* /srv/install
 
     # Create OS user