Added version to sqlplus image

Author: simasch

scripts/1_install_utplsql.sh

@@ -5,4 +5,4 @@ curl -Lk "${UTPLSQL_DOWNLOAD_URL}" -o utPLSQL.zip
 unzip -q utPLSQL.zip
 
 docker run --rm -v $(pwd)/utPLSQL:/utPLSQL -w /utPLSQL/source --network host \
-    --entrypoint sqlplus truemark/sqlplus sys/oracle@//127.0.0.1:1521/XE as sysdba @install_headless.sql UT3 UT3 users
+    --entrypoint sqlplus truemark/sqlplus:19.8 sys/oracle@//127.0.0.1:1521/XE as sysdba @install_headless.sql UT3 UT3 users

scripts/2_install_demo_project.sh

@@ -1,11 +1,11 @@
-docker run --rm -v $(pwd):/work -w /work/  --network host --entrypoint sqlplus truemark/sqlplus \
+docker run --rm -v $(pwd):/work -w /work/  --network host --entrypoint sqlplus truemark/sqlplus:19.8 \
     sys/oracle@//127.0.0.1:1521/XE as sysdba @scripts/sql/create_users.sql
 
-docker run --rm -v $(pwd):/work -w /work/  --network host --entrypoint sqlplus truemark/sqlplus \
+docker run --rm -v $(pwd):/work -w /work/  --network host --entrypoint sqlplus truemark/sqlplus:19.8 \
     app/pass@//127.0.0.1:1521/XE @scripts/sql/create_app_objects.sql
 
-docker run --rm -v $(pwd):/work -w /work/  --network host --entrypoint sqlplus truemark/sqlplus \
+docker run --rm -v $(pwd):/work -w /work/  --network host --entrypoint sqlplus truemark/sqlplus:19.8 \
     code_owner/pass@//127.0.0.1:1521/XE @scripts/sql/create_source_owner_objects.sql
 
-docker run --rm -v $(pwd):/work -w /work/  --network host --entrypoint sqlplus truemark/sqlplus \
+docker run --rm -v $(pwd):/work -w /work/  --network host --entrypoint sqlplus truemark/sqlplus:19.8 \
     tests_owner/pass@//127.0.0.1:1521/XE @scripts/sql/create_tests_owner_objects.sql