versions.sh: pull versions from go.mod again

addresses review comment #408 (comment)

scripts/versions.sh

@@ -13,18 +13,25 @@ function getDepVersion() {
     grep -m1 "^\s*$1" $BASE_PATH/go.mod | cut -d ' ' -f2
 }
 
+extract_commit() {
+  local version=$1
+  if [[ $version == *-* ]]; then
+      # Extract the substring after the last '-'
+      version=${version##*-}
+  fi
+  echo "$version"
+}
+
 # This needs to be exported to be picked up by the dockerfile.
 export GO_VERSION=${GO_VERSION:-$(getDepVersion go)}
 
 # Don't export them as they're used in the context of other calls
 # TODO: undo this hack once go.mod is referring to a tag rather than a commit
-#AVALANCHEGO_VERSION=${AVALANCHEGO_VERSION:-$(getDepVersion github.com/ava-labs/avalanchego)}
-AVALANCHEGO_VERSION=${AVALANCHEGO_VERSION:-ab83fb41528de93c1790301cdd67a07dda9299f0}
+AVALANCHEGO_VERSION=${AVALANCHEGO_VERSION:-$(extract_commit $(getDepVersion github.com/ava-labs/avalanchego))}
 GINKGO_VERSION=${GINKGO_VERSION:-$(getDepVersion github.com/onsi/ginkgo/v2)}
 
 # TODO: undo this hack once go.mod is referring to a tag rather than a commit
-#SUBNET_EVM_VERSION=${SUBNET_EVM_VERSION:-$(getDepVersion github.com/ava-labs/subnet-evm)}
-SUBNET_EVM_VERSION=${SUBNET_EVM_VERSION:-18633729a0cde7d695616e14b77873957a2b59c2}
+SUBNET_EVM_VERSION=${SUBNET_EVM_VERSION:-$(extract_commit $(getDepVersion github.com/ava-labs/subnet-evm))}
 
 # Set golangci-lint version
 GOLANGCI_LINT_VERSION=${GOLANGCI_LINT_VERSION:-'v1.60'}