[buildbot] buildworker: add Python2 package

[LEDE Commits]

ynezz pushed a commit to buildbot.git, branch master:
https://git.openwrt.org/d3ad46365b4bb2c7b57cf335fe2fd27fbc3f75eb

commit d3ad46365b4bb2c7b57cf335fe2fd27fbc3f75eb
Author: Petr Štetiar <ynezz at true.cz>
AuthorDate: Sat Mar 13 07:51:03 2021 +0100

    buildworker: add Python2 package
    
    Which is still needed for 19.07 builds.
    
    Signed-off-by: Petr Štetiar <ynezz at true.cz>
---
 docker/buildworker/Dockerfile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/docker/buildworker/Dockerfile b/docker/buildworker/Dockerfile
index 380ecc5..ae62c7f 100644
--- a/docker/buildworker/Dockerfile
+++ b/docker/buildworker/Dockerfile
@@ -28,6 +28,7 @@ RUN \
 		swig \
 		pv \
 		pwgen \
+		python \
 		python3 \
 		python3-pip \
 		qemu-utils \