ci: use alpine3.18 as base image in builder

.github/images/builder.Dockerfile

@@ -1,4 +1,9 @@
-FROM golang:1.22.5-alpine3.20
+# Use alpine:3.18 as base image and manually download golang temporarily
+# TODO: once we migrate to wasmvm 2.1.0, we can go back to using base golang image
+FROM alpine:3.18
+
+ENV PATH /usr/local/go/bin:$PATH
+COPY --from=golang:1.22 /usr/local/go /usr/local/go
 
 ARG LEDGER_ENABLED
 ENV LEDGER_ENABLED=${LEDGER_ENABLED:-false}

.github/workflows/build.yaml

@@ -16,7 +16,7 @@ env:
   ERC_REGISTRY_ALIAS: "nolus"
   ERC_REPOSITORY: "builder"
   # make sure to update build-binary container tag as well
-  IMAGE_TAG: "1.22.2"
+  IMAGE_TAG: "1.22.3"
   DOCKERFILE: ".github/images/builder.Dockerfile"
   CHECKSUM_FILE: "sha256sum.txt"
   METADATA_FILE: "${{ github.ref_name }}_binaries.json"
@@ -91,7 +91,7 @@ jobs:
     runs-on: ubuntu-latest
     container:
       # image name needs to be hardcoded: https://github.com/orgs/community/discussions/26324
-      image: "public.ecr.aws/nolus/builder:1.22.2"
+      image: "public.ecr.aws/nolus/builder:1.22.3"
 
     steps:
       - uses: actions/checkout@v3