chore(deps): update grafana/otel-lgtm docker tag to v0.26.0 (#1107)

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

Author: renovate[bot]

logging-k8s-stdout-otlp-json/k8s/lgtm.yaml

@@ -47,7 +47,7 @@ spec:
     spec:
       containers:
         - name: lgtm
-          image: grafana/otel-lgtm:0.25.0@sha256:cc97e494d697f0b45997f91ad3b350fd85a5fe51afc41783ba5fcaebe19560cf
+          image: grafana/otel-lgtm:0.26.0@sha256:764b657d5c750a151fbe2f9acd8cd8edeec873b8f5e3179380d7d08b69797c2e
           ports:
             - containerPort: 3000
             - containerPort: 4317