fix(deps): update dependency flux to v2.8.3 (#2930)

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

Author: renovate[bot]

linux/Dockerfile

@@ -43,7 +43,7 @@ RUN install-tool terraform v1.14.6
 RUN install-tool tofu 1.11.5
 
 # renovate: datasource=github-releases packageName=fluxcd/flux2
-RUN install-tool flux v2.8.1
+RUN install-tool flux v2.8.3
 
 # renovate: datasource=github-releases packageName=kubernetes/kubernetes
 RUN install-tool kubectl v1.35.2