[buildbot] docker,worker: install python3-cryptography

[LEDE Commits]

ynezz pushed a commit to buildbot.git, branch main:
https://git.openwrt.org/7f966275500d5cd94cc4b70e0e6bb203d6f569ae

commit 7f966275500d5cd94cc4b70e0e6bb203d6f569ae
Author: Robert Marko <robimarko at gmail.com>
AuthorDate: Mon Nov 25 10:40:03 2024 +0100

    docker,worker: install python3-cryptography
    
    Addition of OPTEE support along with STM32 added a requirment on
    python3-cryptography and without it buildbots for STM32 will fail with:
    Checking 'python3-cryptography'... failed.
    Checking 'python3-pyelftools'... ok.
    optee-os: Please install the Python3 cryptography module
    make[3]: *** [/builder/shared-workdir/build/include/prereq.mk:9: prereq] Error 1
    
    So install python3-cryptography to satisfy it.
    
    Signed-off-by: Robert Marko <robimarko at gmail.com>
    Link: https://github.com/openwrt/buildbot/pull/61
    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 0d230f1..eef2d44 100644
--- a/docker/buildworker/Dockerfile
+++ b/docker/buildworker/Dockerfile
@@ -34,6 +34,7 @@ RUN \
 		python3-venv \
 		python3-pip \
 		python3-pyelftools \
+		python3-cryptography \
 		qemu-utils \
 		rsync \
 		signify-openbsd \