host new public key for AMP cache invalidation

https://developers.google.com/amp/cache/update-cache#rsa-keys

layouts/robots.txt

@@ -1,5 +1,6 @@
 User-Agent: *
 {{- if eq hugo.Environment "production" }}
+Allow: /.well-known/amphtml/apikey.pub
 Disallow: /403.html
 Disallow: /404.html
 

netlify.toml

@@ -54,6 +54,13 @@
     Content-Type = "text/plain; charset=UTF-8"
     Content-Disposition = "inline; filename=\"jarvis.asc\""
 
+# AMP cache invalidation key requirements
+# https://developers.google.com/amp/cache/update-cache#update-cache-guidelines
+[[headers]]
+  for = "/.well-known/amphtml/apikey.pub"
+  [headers.values]
+    Content-Type = "text/plain; charset=UTF-8"
+
 # Redirect Netlify and www subdomains to primary domain:
 [[redirects]]
   from = "https://jakejarvis.netlify.com/*"

static/.well-known/amphtml/apikey.pub

@@ -0,0 +1,9 @@
+-----BEGIN PUBLIC KEY-----
+MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1upnHtc/v97NGGvSFiJ6
+Krddk+u62ZiZiNjU+urVfBYNZe4H+SDgfmSwi/AEpa3C5O9U0bInGlNJUvL5FYNo
+Wjrg8/ZFZ0mkGwe9GqCw/ipeYBiBovIPoWpoHLts5KRLMGro4/gWfivcYFi9+gm8
+x4rbGOgMdQf+p86vxMlo/waeKD3YV1+YOqJDTGib0e9JqZH/RavRPwcp+1kMExYv
+DHvpcBnZdg16663mjGGiG4IPS3KzwL7cXxryywPmt/yg/fSh63h2W5MMOKoevjr0
+oZbUNEEjepvuYq0aAcK3Ce33cSKgkHv67Ir/3TDgfAi4l4VgIZm0JZd2W5OwvcvN
+/QIDAQAB
+-----END PUBLIC KEY-----

yarn.lock

@@ -2312,7 +2312,7 @@ https-proxy-agent@^4.0.0:
 
 "hugo-extended@git+https://github.com/jakejarvis/hugo-extended.git#master":
   version "0.63.2"
-  resolved "git+https://github.com/jakejarvis/hugo-extended.git#32b8bb651270c3875f75160ef8fa375b2951aac9"
+  resolved "git+https://github.com/jakejarvis/hugo-extended.git#f6b20c2deeabdc9d45f49ee9cfa3f8d7c704737a"
   dependencies:
     bin-wrapper "^4.1.0"
     rimraf "^3.0.1"