chore(deps): update registry.access.redhat.com/ubi9/go-toolset docker tag to v1.26.3

Signed-off-by: red-hat-konflux <126015336+red-hat-konflux[bot]@users.noreply.github.com>

Author: red-hat-konflux[bot]

Dockerfile

@@ -1,7 +1,7 @@
 # Build the manager binary
 # For more details and updates, refer to
 # https://catalog.redhat.com/software/containers/ubi9/go-toolset/61e5c00b4ec9945c18787690
-FROM registry.access.redhat.com/ubi9/go-toolset:1.25.9 AS builder
+FROM registry.access.redhat.com/ubi9/go-toolset:1.26.3 AS builder
 ARG TARGETOS
 ARG TARGETARCH
 ARG ENABLE_COVERAGE=false