Merge branch 'fix/dblab-server-go-and-docker-cves' into 'master'

bump CI Go toolchain 1.26.2 to 1.26.3 (stdlib CVE fixes)

Closes #712

See merge request postgres-ai/database-lab!1147

Author: Sarumyan

engine/.gitlab-ci.yml

@@ -9,7 +9,7 @@ workflow:
 
 default:
   image:
-    name: golang:1.26.2
+    name: golang:1.26.3
     pull_policy: if-not-present
   interruptible: true  # All jobs can be cancelled by default
 
@@ -70,7 +70,7 @@ lint:
 build-binary-alpine:
   <<: *only_engine
   image:
-    name: golang:1.26.2-alpine
+    name: golang:1.26.3-alpine
     pull_policy: if-not-present
   stage: build-binary
   artifacts: