fix: Add nixpacks configuration for Astro deployment

dealplustech-astro/node_modules/svgo/plugins/removeXMLProcInst.js

@@ -0,0 +1,26 @@
+import { detachNodeFromParent } from '../lib/xast.js';
+
+export const name = 'removeXMLProcInst';
+export const description = 'removes XML processing instructions';
+
+/**
+ * Remove XML Processing Instruction.
+ *
+ * @example
+ * <?xml version="1.0" encoding="utf-8"?>
+ *
+ * @author Kir Belevich
+ *
+ * @type {import('../lib/types.js').Plugin}
+ */
+export const fn = () => {
+  return {
+    instruction: {
+      enter: (node, parentNode) => {
+        if (node.name === 'xml') {
+          detachNodeFromParent(node, parentNode);
+        }
+      },
+    },
+  };
+};