chore(deps): update ghcr.io/flexget/flexget docker tag to v3.15.23 (#2191)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

kubernetes/download/flexget/values.yaml

@@ -1,6 +1,6 @@
 image:
   repository: "ghcr.io/flexget/flexget"
-  tag: "3.15.21@sha256:bd57b66752b779e1606275bf9bb2895d96441c89217122aa3d41445683c6076e"
+  tag: "3.15.23@sha256:76a7d6253f95443e8c9ecd786e991a4f2d743235a79b4a4f82826d9e79424c7a"
 
 ports: 
 - name: main