ci: remove hardcoded tag list from ci scripts

Author: josibake

ci/test/00_setup_env_native_qt5.sh

@@ -14,6 +14,6 @@ export TEST_RUNNER_EXTRA="--previous-releases --coverage --extended --exclude fe
 export RUN_UNIT_TESTS_SEQUENTIAL="true"
 export RUN_UNIT_TESTS="false"
 export GOAL="install"
-export PREVIOUS_RELEASES_TO_DOWNLOAD="v0.14.3 v0.15.2 v0.16.3 v0.17.2 v0.18.1 v0.19.1 v0.20.1 v0.21.0 v22.0 v23.0"
+export DOWNLOAD_PREVIOUS_RELEASES="true"
 export BITCOIN_CONFIG="--enable-zmq --with-libs=no --with-gui=qt5 --enable-reduce-exports \
 --enable-debug CFLAGS=\"-g0 -O2 -funsigned-char\" CXXFLAGS=\"-g0 -O2 -funsigned-char\" CC=gcc-8 CXX=g++-8"

ci/test/05_before_script.sh

@@ -47,6 +47,6 @@ if [ -z "$NO_DEPENDS" ]; then
   fi
   CI_EXEC "$SHELL_OPTS" make "$MAKEJOBS" -C depends HOST="$HOST" "$DEP_OPTS" LOG=1
 fi
-if [ -n "$PREVIOUS_RELEASES_TO_DOWNLOAD" ]; then
-  CI_EXEC test/get_previous_releases.py -b -t "$PREVIOUS_RELEASES_DIR" "${PREVIOUS_RELEASES_TO_DOWNLOAD}"
+if [ "$DOWNLOAD_PREVIOUS_RELEASES" = "true" ]; then
+  CI_EXEC test/get_previous_releases.py -b -t "$PREVIOUS_RELEASES_DIR"
 fi