Bump to alpine 3.18 and bump versions

Also, more loosely pinning some dependencies with stable apis.

Dockerfile

@@ -1,15 +1,15 @@
-FROM alpine:3.17
+FROM alpine:3.18
 
 RUN apk add --no-cache \
         bash~=5 \
-        consul~=1.14 \
-        mariadb-client~=10.6 \
-        mariadb-connector-c~=3.3 \
-        nomad~=1.4 \
-        postgresql15-client~=15.3 \
-        rclone~=1.60 \
-        redis~=7.0 \
-        restic~=0.14 \
+        consul~=1 \
+        mariadb-client~=10 \
+        mariadb-connector-c~=3 \
+        nomad~=1 \
+        postgresql15-client~=15 \
+        rclone~=1.62 \
+        redis~=7 \
+        restic~=0.15 \
         sqlite~=3 \
         tzdata~=2023c \
         ;