Add artifact filtering for CEF installer in app update process

- Introduced isCefInstallerArtifact function to identify CEF installer artifacts based on their file names.
- Updated artifact selection logic to filter out CEF installer artifacts, ensuring only relevant updates are processed.
- Enhanced overall update handling by improving artifact management and reducing unnecessary processing.

public/appupdate.js

@@ -25,6 +25,11 @@ let runningUpdate = null
 const getArtifactName = (artifact) =>
   String(artifact?.fileName || artifact?.relativePath || artifact?.url || '')
 
+const isCefInstallerArtifact = (artifact) => {
+  const name = getArtifactName(artifact).toLowerCase()
+  return name.endsWith('-cef.exe') || name.endsWith('-cef.pkg')
+}
+
 const normalizeArch = (arch) => {
   if (arch === 'x64' || arch === 'amd64') return 'x64'
   if (arch === 'arm64' || arch === 'aarch64') return 'arm64'
@@ -69,7 +74,9 @@ const selectUpdateArtifact = (
     throw new Error(`App updates are not supported on ${platform}.`)
   }
 
-  const artifacts = Array.isArray(update?.artifacts) ? update.artifacts : []
+  const artifacts = (Array.isArray(update?.artifacts) ? update.artifacts : []).filter(
+    (artifact) => !isCefInstallerArtifact(artifact)
+  )
   const matchingArtifact = artifacts.find((artifact) =>
     artifactMatchesPlatform(artifact, target, platform, arch)
   )