wine{Unstable,Staging}: 6.20 -> 6.21

Upstream dlls/crypt32/unixlib.c has been heavily modified,
so we need a new patch that fits for unstable/staging.

pkgs/misc/emulators/wine/cert-path-6.21.patch

@@ -0,0 +1,15 @@
+diff --git a/dlls/crypt32/unixlib.c b/dlls/crypt32/unixlib.c
+index 7cb521eb98b..5804b88be84 100644
+--- a/dlls/crypt32/unixlib.c
++++ b/dlls/crypt32/unixlib.c
+@@ -654,6 +654,10 @@ static void load_root_certs(void)
+ 
+     for (i = 0; i < ARRAY_SIZE(CRYPT_knownLocations) && list_empty(&root_cert_list); i++)
+         import_certs_from_path( CRYPT_knownLocations[i], TRUE );
++
++    char *nix_cert_file = getenv("NIX_SSL_CERT_FILE");
++    if (nix_cert_file != NULL)
++        import_certs_from_path(nix_cert_file, TRUE);
+ }
+ 
+ static NTSTATUS enum_root_certs( void *args )

pkgs/misc/emulators/wine/sources.nix

@@ -44,9 +44,9 @@ in rec {
 
   unstable = fetchurl rec {
     # NOTE: Don't forget to change the SHA256 for staging as well.
-    version = "6.20";
+    version = "6.21";
     url = "https://dl.winehq.org/wine/source/6.x/wine-${version}.tar.xz";
-    sha256 = "0wc4a8slb3k859sdw9wwy92zc4pq7xw1kbq4frnxbzbvkiz26a20";
+    sha256 = "sha256-97Z1crUqcVDz3MQzGLQM8QQlFxMZ7fY2imAnRkLgec4=";
     inherit (stable) gecko32 gecko64;
 
     ## see http://wiki.winehq.org/Mono
@@ -58,14 +58,14 @@ in rec {
 
     patches = [
       # Also look for root certificates at $NIX_SSL_CERT_FILE
-      ./cert-path.patch
+      ./cert-path-6.21.patch
      ];
   };
 
   staging = fetchFromGitHub rec {
     # https://github.com/wine-staging/wine-staging/releases
     inherit (unstable) version;
-    sha256 = "12fvfn77rsqwdprkxiylq09jc81lq34bm8p1zhhn85q6yawpjlbn";
+    sha256 = "sha256-bgtl/pei/tWob0/voRd1THBnIfsXiu/fmldG2v3rdEE=";
     owner = "wine-staging";
     repo = "wine-staging";
     rev = "v${version}";