pdfpc: fix build

Closes #48612.

Signed-off-by: FX Coudert <fxcoudert@gmail.com>

Formula/pdfpc.rb

@@ -19,6 +19,13 @@ class Pdfpc < Formula
   depends_on "librsvg"
   depends_on "poppler"
 
+  # Build with recent vala, remove in next release
+  # https://github.com/pdfpc/pdfpc/pull/446
+  patch do
+    url "https://github.com/pdfpc/pdfpc/commit/afd0fc83.diff?full_index=1"
+    sha256 "8f2769696229393fe179b637f261fcf47128f4dd8026446d74e65483f1dbea36"
+  end
+
   def install
     system "cmake", ".", "-DMOVIES=on", *std_cmake_args
     system "make", "install"