Update self-hosted changelog (#5319)

Co-authored-by: devalog <31395196+devalog@users.noreply.github.com>

Author: github-actions[bot]

fern/products/docs/pages/self-hosted/changelog/2026-05-02.mdx

@@ -0,0 +1,5 @@
+### v0.114.26
+
+```dockerfile
+FROM fernenterprise/fern-self-hosted:0.114.26
+```