Borg-UI: recreate the borg venvs with --clear

uv now refuses to create a venv on a non-empty path, so a Borg version bump stopped the update at /opt/borg1-venv or /opt/borg2-venv (#18117).

ct/borg-ui.sh

@@ -69,7 +69,7 @@ function update_script() {
 
     if [[ "$(cat /opt/borg1-venv/.pinned_version 2>/dev/null)" != "$BORG1_VERSION" ]]; then
       msg_info "Installing Borg ${BORG1_VERSION} (Patience)"
-      $STD uv venv --python "$BORG_PYTHON" /opt/borg1-venv
+      $STD uv venv --clear --python "$BORG_PYTHON" /opt/borg1-venv
       $STD uv pip install --python /opt/borg1-venv pyfuse3 "borgbackup==${BORG1_VERSION}"
       echo "$BORG1_VERSION" >/opt/borg1-venv/.pinned_version
       ln -sf /opt/borg1-venv/bin/borg /usr/local/bin/borg
@@ -78,7 +78,7 @@ function update_script() {
 
     if [[ "$(cat /opt/borg2-venv/.pinned_version 2>/dev/null)" != "${BORG2_VERSION}-${BORGSTORE_VERSION}" ]]; then
       msg_info "Installing Borg ${BORG2_VERSION} (Patience)"
-      $STD uv venv --python "$BORG_PYTHON" /opt/borg2-venv
+      $STD uv venv --clear --python "$BORG_PYTHON" /opt/borg2-venv
       $STD uv pip install --python /opt/borg2-venv pyfuse3 "borgbackup==${BORG2_VERSION}" "borgstore[rclone,sftp,rest,s3,blake3]==${BORGSTORE_VERSION}"
       echo "${BORG2_VERSION}-${BORGSTORE_VERSION}" >/opt/borg2-venv/.pinned_version
       ln -sf /opt/borg2-venv/bin/borg /usr/local/bin/borg2

install/frigate-install.sh

@@ -110,7 +110,7 @@ export AUTOGRAPH_VERBOSITY=0
 export GLOG_minloglevel=3
 export GLOG_logtostderr=0
 
-fetch_and_deploy_gh_release "frigate" "blakeblackshear/frigate" "tarball" "v0.18.2" "/opt/frigate"
+fetch_and_deploy_gh_release "frigate" "blakeblackshear/frigate" "tarball" "v0.18.0" "/opt/frigate"
 
 msg_info "Building Nginx"
 $STD bash /opt/frigate/docker/main/build_nginx.sh