chore(deps): update dependency open-policy-agent/regal to v0.42.0

Replace matchNewValue with allowedVersions constraint to properly
prevent Renovate from creating update branches for major versions.
The previous enabled/matchNewValue approach did not prevent branch
creation for already existing PRs.

PKGBUILD

@@ -2,7 +2,7 @@
 
 pkgname=opa-regal
 _pkgname=regal
-pkgver=0.39.0 # renovate: datasource=github-tags depName=open-policy-agent/regal extractVersion='^v?(?<version>.*)$'
+pkgver=0.42.0 # renovate: datasource=github-tags depName=open-policy-agent/regal extractVersion='^v?(?<version>.*)$'
 pkgrel=1
 pkgdesc="Regal is a linter and language server for Rego"
 arch=('armv7h' 'aarch64' 'x86_64')

renovate.json

@@ -6,9 +6,8 @@
   ],
   "packageRules": [
     {
-      "enabled": false,
-      "matchPackageNames": ["open-policy-agent/regal"],
-      "matchNewValue": "^2"
+      "allowedVersions": "<1.0.0",
+      "matchPackageNames": ["open-policy-agent/regal"]
     }
   ]
 }