chore(deps): update golang:1.21 docker digest to e9ebfe9

Author: ur-renovate

Dockerfile

@@ -14,7 +14,7 @@
 # limitations under the License.
 
 # Specify the version of Go to use
-FROM golang:1.21@sha256:19600fdcae402165dcdab18cb9649540bde6be7274dedb5d205b2f84029fe909 as builder
+FROM golang:1.21@sha256:e9ebfe932adeff65af5338236f0b0604c86b143c1bff3e1d0551d8f6196ab5c5 as builder
 
 RUN apt-get update && apt-get install -y xz-utils && rm -rf /var/lib/apt/lists/*