chore: upgrade PostgreSQL from 14.11 to 18.0

Update PostgreSQL version across all Docker configurations and builds.

Changes:
- Bump PG_VERSION_TAG from REL_14_11 to REL_18_0 in all env files
- Add libicu-dev and pkg-config dependencies for PostgreSQL 18 build
- Remove version directive from docker-compose-offline.yaml (deprecated)

PostgreSQL 18 provides improved performance, security updates, and
better support for modern database operations.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: Mateusz Czeladka

.env.IntegrationTest

@@ -4,7 +4,7 @@ NETWORK=devkit
 PROTOCOL_MAGIC=42
 
 ## Postgres image
-PG_VERSION_TAG=REL_14_11
+PG_VERSION_TAG=REL_18_0
 
 ## Yaci image
 YACI_VERSION=0.10.5

.env.docker-compose

@@ -7,7 +7,7 @@ PROTOCOL_MAGIC=764824073
 # mainnet 764824073, preprod 1, preview 2, devkit 42
 
 ## Postgres image
-PG_VERSION_TAG=REL_14_11
+PG_VERSION_TAG=REL_18_0
 
 ## Postgres variables
 DB_NAME=rosetta-java

.env.docker-compose-preprod

@@ -7,7 +7,7 @@ PROTOCOL_MAGIC=1
 # mainnet 764824073, preprod 1, preview 2, devkit 42
 
 ## Postgres image
-PG_VERSION_TAG=REL_14_11
+PG_VERSION_TAG=REL_18_0
 
 ## Postgres variables
 DB_NAME=rosetta-java

docker-compose-offline.yaml

@@ -1,4 +1,3 @@
-version: '3.8'
 include:
   - docker-compose-api.yaml
 

docker/Dockerfile

@@ -199,7 +199,7 @@ RUN apt update && apt install -y \
   && update-locale LANG=en_US.UTF-8 \
   && apt clean
 
-ENV PG_VERSION_TAG=REL_14_11
+ENV PG_VERSION_TAG=REL_18_0
 
 WORKDIR /usr/src
 

docker/dockerfiles/postgres/Dockerfile

@@ -11,12 +11,14 @@ RUN apt update && apt install -y \
   ca-certificates \
   sudo \
   locales \
+  libicu-dev \
+  pkg-config \
   && sed -i '/en_US.UTF-8/s/^# //g' /etc/locale.gen \
   && locale-gen \
   && update-locale LANG=en_US.UTF-8 \
   && apt clean
 
-ENV PG_VERSION_TAG=REL_14_11
+ENV PG_VERSION_TAG=REL_18_0
 ENV PG_DATA="/var/lib/postgresql/data"
 ENV PG_BIN="/usr/local/pgsql/bin"
 ENV PATH="$PG_BIN:$PATH"