feat: build and cache debug and src on this branch

Author: samrose

docker/nix/build_nix.sh

@@ -8,3 +8,9 @@ fi
 nix build .#psql_15/bin -o psql_15
 nix flake check -L 
 nix copy --to s3://nix-postgres-artifacts?secret-key=nix-secret-key ./psql_15
+if [ "$SYSTEM" = "aarch64-linux" ]; then
+    nix build .#postgresql_15_debug -o postgresql_15_debug
+    nix build .#postgresql_15_src -o postgresql_15_src
+    nix copy --to s3://nix-postgres-artifacts?secret-key=nix-secret-key copy ./postgresql_15_debug
+    nix copy --to s3://nix-postgres-artifacts?secret-key=nix-secret-key copy ./postgresql_15_src
+fi

flake.nix

@@ -296,7 +296,7 @@
           pg_regress = pg_regress;
           pg_prove = pkgs.perlPackages.TAPParserSourceHandlerpgTAP;
           postgresql_15 = pkgs.postgresql_15;
-
+          postgresql_15_debug = if pkgs.stdenv.isLinux then postgresql_15.debug else null;
           postgresql_15_src = pkgs.stdenv.mkDerivation {
             pname = "postgresql-15-src";
             version = pkgs.postgresql_15.version;