cert-manager: Add certificate HLC

Hatch Learning Center has several domains; Tabitha couldn't decide which
she liked best :) At present, they all resolve to the same website, with
_hatchlearningcenter.org_ as the canonical name.

cert-manager/certificates.yaml

@@ -126,3 +126,31 @@ spec:
   privateKey:
     algorithm: ECDSA
     rotationPolicy: Always
+
+---
+apiVersion: cert-manager.io/v1
+kind: Certificate
+metadata:
+  name: hlc-cert
+spec:
+  secretName: hlc-cert
+  dnsNames:
+  - hatchlearningcenter.org
+  - '*.hatchlearningcenter.org'
+  - hatchlearningcenter.com
+  - '*.hatchlearningcenter.com'
+  - hlckc.org
+  - '*.hlckc.org'
+  - hlckc.com
+  - '*.hlckc.com'
+  - hlcks.org
+  - '*.hlcks.org'
+  - hlcks.com
+  - '*.hlcks.com'
+  issuerRef:
+    group: cert-manager.io
+    kind: ClusterIssuer
+    name: zerossl
+  privateKey:
+    algorithm: ECDSA
+    rotationPolicy: Always