feat: add support for homeConfigurations

This enables support for `homeConfigurations` (the Home Manager
standalone configurations).

comment_on_pr.sh

@@ -64,7 +64,7 @@ markdown_from_report() {
 
 <details><summary><b>Tips on reading this data</b></summary>
 
-- For NixOS configurations you generally care only about the `Size` (closure size/size on disk).
+- For NixOS/Home-Manager configurations you generally care only about the `Size` (closure size/size on disk).
   - Reduce the `Size` by disabling unneeded services/default packages.
 - For Packages you care about both the `Size` and the `NAR Size`.
   - Reduce the `NAR Size` by reducing the size of the build outputs, e.g. don't copy unnecessary data to the $out dir, optimize binaries for size, etc.
@@ -87,6 +87,16 @@ markdown_from_report() {
       echo "$compare" | json_to_md_rows_and_change "nixosConfigurations"
       echo
     fi
+    if echo "$compare" | has_elements 'homeConfigurations'; then
+      cat <<-"EOF"
+				## Home Manager Configurations
+
+				| Name | Size | Size Change | NAR Size | NAR Size Change |
+				|------|-----:|------------:|---------:|----------------:|
+			EOF
+      echo "$compare" | json_to_md_rows_and_change "homeConfigurations"
+      echo
+    fi
     if echo "$compare" | has_elements 'packages'; then
       cat <<-"EOF"
 				## Packages
@@ -108,6 +118,16 @@ markdown_from_report() {
       json_to_md_rows "nixosConfigurations" "$1"
       echo
     fi
+    if has_elements 'homeConfigurations' "$1"; then
+      cat <<-"EOF"
+				## Home Manger Configurations
+
+				| Name | Size | NAR Size |
+				|------|-----:|---------:|
+			EOF
+      json_to_md_rows "homeConfigurations" "$1"
+      echo
+    fi
     if has_elements 'packages' "$1"; then
       cat <<-"EOF"
 				## Packages