update to go 1.16.15, 1.17.8 to address CVE-2022-24921

Addresses [CVE-2022-24921](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-24921)

go 1.16.15
--------------------

go1.16.15 (released 2022-03-03) includes a security fix to the regexp/syntax package,
as well as bug fixes to the compiler, runtime, the go command, and to the net package.
See the Go 1.16.15 milestone on the issue tracker for details:

https://github.com/golang/go/issues?q=milestone%3AGo1.16.15+label%3ACherryPickApproved

full diff: https://github.com/golang/go/compare/go1.16.14...go1.16.15

go 1.17.8
--------------------

go1.17.8 (released 2022-03-03) includes a security fix to the regexp/syntax package,
as well as bug fixes to the compiler, runtime, the go command, and the crypto/x509,
and net packages. See the Go 1.17.8 milestone on the issue tracker for details:

https://github.com/golang/go/issues?q=milestone%3AGo1.17.8+label%3ACherryPickApproved

full diff: https://github.com/golang/go/compare/go1.17.7...go1.17.8

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

.zuul/playbooks/containerd-build/run.yaml

@@ -2,7 +2,7 @@
   become: yes
   roles:
   - role: config-golang
-    go_version: '1.17.7'
+    go_version: '1.17.8'
     arch: arm64
   tasks:
   - name: Build containerd