chore!: replace optional deps with peer deps

Author: GauBen

package.json

@@ -3,6 +3,7 @@
   "version": "8.6.0",
   "description": "Core functionality of CycloneDX for JavaScript (Node.js or WebBrowser).",
   "license": "Apache-2.0",
+  "sideEffects": false,
   "keywords": [
     "CycloneDX",
     "models",
@@ -83,13 +84,30 @@
     "packageurl-js": "^2.0.1",
     "spdx-expression-parse": "^3.0.1 || ^4"
   },
-  "optionalDependencies": {
+  "peerDependencies": {
     "ajv": "^8.12.0",
     "ajv-formats": "^3.0.1",
     "ajv-formats-draft2019": "^1.6.1",
     "libxmljs2": "^0.35||^0.37",
     "xmlbuilder2": "^3.0.2"
   },
+  "peerDependenciesMeta": {
+    "ajv": {
+      "optional": true
+    },
+    "ajv-formats": {
+      "optional": true
+    },
+    "ajv-formats-draft2019": {
+      "optional": true
+    },
+    "libxmljs2": {
+      "optional": true
+    },
+    "xmlbuilder2": {
+      "optional": true
+    }
+  },
   "devDependencies": {
     "@types/mocha": "^10",
     "@types/node": "ts5.7",
@@ -168,6 +186,10 @@
     "test": "./tests",
     "example": "./examples"
   },
+  "files": [
+    "dist*/**",
+    "res"
+  ],
   "scripts": {
     "dev-setup": "npm i && run-p --aggregate-output -lc dev-setup:\\*",
     "dev-setup:tools": "run-p --aggregate-output -lc dev-setup:tools:\\*",