Add release notes and blog entry for Camel 4.8.3

Author: gzurowski

content/blog/2025/01/RELEASE-4.8.3/featured.png

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+---
+title: "RELEASE 4.8.3"
+date: 2025-01-12
+draft: false
+authors: [gzurowski]
+categories: ["Releases"]
+preview: "The Camel community announces the immediate availability of the new Camel 4.8.3 LTS release"
+---
+
+The Camel community announces the immediate availability of the Camel 4.8.3 LTS patch release with 40 bug fixes and improvements.
+
+The artifacts are published and ready for you to download from the Central Maven repository. For more details please take a look at the [release notes](/releases/release-4.8.3/).
+
+Many thanks to all who made this release possible.
+
+On behalf of the Camel PMC,  
+Gregor Zurowski

content/blog/2025/01/RELEASE-4.8.3/index.md

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+---
+date: 2025-01-12
+eol: 2025-09-14
+draft: false
+type: release-note
+version: 4.8.3
+title: "Release 4.8.3"
+preview: "New LTS release 4.8.3"
+apiBreaking: ""
+knownIssues: ""
+jiraVersionId: 12355314
+category: camel
+kind: lts
+jdk: [17, 21]
+---
+
+This release is the new Camel 4.8.3 release.