lexicon: depend on pyyaml

Closes #112572.

Signed-off-by: BrewTestBot <1589480+BrewTestBot@users.noreply.github.com>

Formula/lexicon.rb

@@ -19,6 +19,7 @@ class Lexicon < Formula
 
   depends_on "rust" => :build # for cryptography
   depends_on "python@3.10"
+  depends_on "pyyaml"
   depends_on "six"
 
   uses_from_macos "libxml2"
@@ -169,11 +170,6 @@ class Lexicon < Formula
     sha256 "bc824559e43e8ab983426a49525079d186b25372ff63aa3430ccd527d95edc3a"
   end
 
-  resource "PyYAML" do
-    url "https://files.pythonhosted.org/packages/36/2b/61d51a2c4f25ef062ae3f74576b01638bebad5e045f747ff12643df63844/PyYAML-6.0.tar.gz"
-    sha256 "68fb519c14306fec9720a2a5b45bc9f0c8d1b9c72adf45c37baedfcd949c35a2"
-  end
-
   resource "requests" do
     url "https://files.pythonhosted.org/packages/a5/61/a867851fd5ab77277495a8709ddda0861b28163c4613b011bc00228cc724/requests-2.28.1.tar.gz"
     sha256 "7c5599b102feddaa661c826c56ab4fee28bfd17f5abca1ebbe3e7f19d7c97983"

pypi_formula_mappings.json

@@ -253,7 +253,7 @@
   },
   "lexicon": {
     "package_name": "dns-lexicon[full]",
-    "exclude_packages": ["six"]
+    "exclude_packages": ["six", "PyYAML"]
   },
   "legit": {
     "exclude_packages": ["six"]