feat: scripts: go.mod dep diff script

scripts/gomod-diff.sh

@@ -0,0 +1,36 @@
+#!/usr/bin/env bash
+
+if [ $# -ne 2 ]; then
+    echo "./gomod-diff.sh [refA] [refB]"
+    exit 1
+fi
+
+temp=$(mktemp -d)
+repo=$(pwd)
+
+cd "$temp"
+echo "running in $temp"
+
+git clone $repo a
+git clone $repo b
+
+cd a
+git checkout $1
+
+cd ../b
+git checkout $2
+make deps
+make -j10 buildall
+
+cd ../a
+make deps
+make -j10 buildall
+
+go mod vendor
+cd ../b
+go mod vendor
+
+cd ..
+diff -r --color a/vendor b/vendor
+diff -r --color a/vendor b/vendor > mod.diff
+echo "Saved to $temp/mod.diff"