chore!: automatically use secure cookies if using https access-url (#22198)

`--secure-auth-cookie` now automatically sources it's default value from `--access-url`

If the access url uses HTTPS, secure is set to `true`. 
To revert to old behavior, set the value explicitly to `false`

cli/server_test.go

@@ -1740,6 +1740,18 @@ func TestServer(t *testing.T) {
 
 			// Next, we instruct the same server to display the YAML config
 			// and then save it.
+			// Because this is literally the same invocation, DefaultFn sets the
+			// value of 'Default'. Which triggers a mutually exclusive error
+			// on the next parse.
+			// Usually we only parse flags once, so this is not an issue
+			for _, c := range inv.Command.Children {
+				if c.Name() == "server" {
+					for i := range c.Options {
+						c.Options[i].DefaultFn = nil
+					}
+					break
+				}
+			}
 			inv = inv.WithContext(testutil.Context(t, testutil.WaitMedium))
 			//nolint:gocritic
 			inv.Args = append(args, "--write-config")

cli/testdata/coder_server_--help.golden

@@ -383,7 +383,7 @@ NETWORKING OPTIONS:
       --samesite-auth-cookie lax|none, $CODER_SAMESITE_AUTH_COOKIE (default: lax)
           Controls the 'SameSite' property is set on browser session cookies.
 
-      --secure-auth-cookie bool, $CODER_SECURE_AUTH_COOKIE
+      --secure-auth-cookie bool, $CODER_SECURE_AUTH_COOKIE (default: false)
           Controls if the 'Secure' property is set on browser session cookies.
 
       --wildcard-access-url string, $CODER_WILDCARD_ACCESS_URL

cli/testdata/server-config.yaml.golden

@@ -176,7 +176,7 @@ networking:
   # (default: <unset>, type: string-array)
   proxyTrustedOrigins: []
   # Controls if the 'Secure' property is set on browser session cookies.
-  # (default: <unset>, type: bool)
+  # (default: false, type: bool)
   secureAuthCookie: false
   # Controls the 'SameSite' property is set on browser session cookies.
   # (default: lax, type: enum[lax\|none])