Fix pg_lake build: add krb5-dev for gssapi headers

The pg_lake_engine extension requires gssapi/gssapi.h from the PostgreSQL
server headers, which depends on the Kerberos development package.

Author: pyramation

Dockerfile

@@ -49,7 +49,8 @@ RUN apk add --no-cache \
     xz-dev \
     zstd-dev \
     libpq-dev \
-    linux-headers
+    linux-headers \
+    krb5-dev
 
 WORKDIR /build