chore(deps): pin go builder image sha

wolf31o2 · wolf31o2 · commit ca112aaff872 · 2023-07-06T12:11:22.000-04:00
Signed-off-by: Chris Gianelloni &lt;wolf31o2@blinklabs.io&gt;
diff --git a/Dockerfile b/Dockerfile
@@ -1,4 +1,5 @@
-FROM cgr.dev/chainguard/go:1.19 AS build
+# go:1.19 on 20230706
+FROM cgr.dev/chainguard/go@sha256:13a12452e39525bf71ca9bee362fcaccd933952960391a601676e55406b6fc2f AS build
 
 WORKDIR /code
 COPY . .
