fix DockerFile

Dockerfile

@@ -1,5 +1,5 @@
 # Builder
-FROM golang:1.19-alpine AS builder
+FROM golang:1.20-alpine AS builder
 
 RUN apk add --no-cache \
     ca-certificates \
@@ -18,7 +18,7 @@ RUN WASMVM_VERSION=$(go list -m github.com/CosmWasm/wasmvm | cut -d ' ' -f 2) &&
       -O /lib/libwasmvm_muslc.a && \
     # verify checksum
     wget https://github.com/CosmWasm/wasmvm/releases/download/$WASMVM_VERSION/checksums.txt -O /tmp/checksums.txt && \
-    sha256sum /lib/libwasmvm_muslc.a | grep $(cat /tmp/checksums.txt | grep $(uname -m) | cut -d ' ' -f 1)
+    sha256sum /lib/libwasmvm_muslc.a | grep $(cat /tmp/checksums.txt | grep $(uname -m).a | cut -d ' ' -f 1)
 
 COPY . .
 RUN LEDGER_ENABLED=false BUILD_TAGS=muslc LINK_STATICALLY=true make build