chore: bump go to 1.19.2

Bump go to [1.19.2](siderolabs/tools#236)

Fix iptables download URL. Dockerfile's `ADD` instructuon returns a 403
when using the iptables `netfilter.org` download url, seems to be due to
some kind of validation of User-Agent probably. So use the debian
mirror.

Signed-off-by: Noel Georgi <git@frezbo.dev>

Pkgfile

@@ -3,7 +3,7 @@
 format: v1alpha2
 
 vars:
-  TOOLS_IMAGE: ghcr.io/siderolabs/tools:v1.3.0-alpha.0-14-g5df6589
+  TOOLS_IMAGE: ghcr.io/siderolabs/tools:v1.3.0-alpha.0-17-ga264809
 
   # renovate: datasource=github-releases depName=containernetworking/plugins
   cni_version: v1.1.1

iptables/pkg.yaml

@@ -5,7 +5,7 @@ dependencies:
   - stage: base
 steps:
   - sources:
-      - url: https://www.netfilter.org/pub/iptables/iptables-{{ .iptables_version }}.tar.bz2
+      - url: https://deb.debian.org/debian/pool/main/i/iptables/iptables_{{ .iptables_version }}.orig.tar.bz2
         destination: iptables.tar.bz2
         sha256: "{{ .iptables_sha256 }}"
         sha512: "{{ .iptables_sha512 }}"