Bump pg_lakehouse to the latest release

v0.9.0 was released yesterday and some new functions are used in the
documentation, etc.

contrib/pg_lakehouse/Dockerfile

@@ -15,17 +15,17 @@ RUN apt-get update && apt-get install -y \
 RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
 
 # Set default Rust version
-RUN /root/.cargo/bin/rustup default stable
+RUN /root/.cargo/bin/rustup default 1.78.0-x86_64-unknown-linux-gnu
 
 # Clone repository
 RUN git clone https://github.com/paradedb/paradedb
 
-ARG LAKEHOUSE_VERSION=v0.7.5
+ARG LAKEHOUSE_VERSION=v0.9.0
 ARG PG_VERSION=15
 
 # Build extension
 RUN cd paradedb/pg_lakehouse && \
 	git fetch origin ${LAKEHOUSE_VERSION} && \
 	git checkout ${LAKEHOUSE_VERSION} && \
     cargo pgrx init --pg${PG_VERSION} /usr/bin/pg_config && \
-    cargo pgrx package
+    cargo pgrx package

contrib/pg_lakehouse/Trunk.toml

@@ -1,6 +1,6 @@
 [extension]
 name = "pg_lakehouse"
-version = "0.7.5"
+version = "0.9.0"
 repository = "https://github.com/paradedb/paradedb"
 license = "AGPL-3.0"
 description = "An analytical query engine for Postgres, similar to DuckDB"