Updated Dockerfile to use release [skip ci]

.dockerignore

@@ -1,15 +0,0 @@
-/.git/
-/dist/
-/log/
-/results/
-/tmp_check/
-/sql/vector--?.?.?.sql
-regression.*
-*.o
-*.so
-*.bc
-*.dll
-*.dylib
-*.obj
-*.lib
-*.exp

Dockerfile

@@ -1,8 +1,10 @@
+# syntax=docker/dockerfile:1
+
 ARG PG_MAJOR=17
 FROM postgres:$PG_MAJOR
 ARG PG_MAJOR
 
-COPY . /tmp/pgvector
+ADD https://github.com/pgvector/pgvector.git#v0.8.0 /tmp/pgvector
 
 RUN apt-get update && \
 		apt-mark hold locales && \