End of life support ubuntu 21.04

[yurkov-anton]

Describe the bug
End of life support ubuntu 21.04, therefore standard repo doesn't contain path for 21.04 distributive.
Need to set old-release repo to /etc/apt/sources.list

Environment:

• local build

To Reproduce

make DRIVE_MANAGER_TYPE=loopbackmgr image-drivemgr
docker build --network host --file ./pkg/drivemgr/loopbackmgr/Dockerfile.build \
--tag loopbackmgr:base ./pkg/drivemgr/loopbackmgr \

Sending build context to Docker daemon   38.4kB
Step 1/2 : FROM    ubuntu:21.04
 ---> 7cc39f89fa58
Step 2/2 : RUN     apt update --no-install-recommends -y -q && apt remove --no-install-recommends -y --allow-remove-essential -q bash
 ---> Running in e47608304eef

WARNING: apt does not have a stable CLI interface. Use with caution in scripts.

Ign:1 http://security.ubuntu.com/ubuntu hirsute-security InRelease
Ign:2 http://archive.ubuntu.com/ubuntu hirsute InRelease
Err:3 http://security.ubuntu.com/ubuntu hirsute-security Release
  404  Not Found [IP: 91.189.91.38 80]
Ign:4 http://archive.ubuntu.com/ubuntu hirsute-updates InRelease
Ign:5 http://archive.ubuntu.com/ubuntu hirsute-backports InRelease
Err:6 http://archive.ubuntu.com/ubuntu hirsute Release
  404  Not Found [IP: 91.189.91.38 80]
Err:7 http://archive.ubuntu.com/ubuntu hirsute-updates Release
  404  Not Found [IP: 91.189.91.38 80]
Err:8 http://archive.ubuntu.com/ubuntu hirsute-backports Release
  404  Not Found [IP: 91.189.91.38 80]
Reading package lists...
E: The repository 'http://security.ubuntu.com/ubuntu hirsute-security Release' does not have a Release file.
E: The repository 'http://archive.ubuntu.com/ubuntu hirsute Release' does not have a Release file.
E: The repository 'http://archive.ubuntu.com/ubuntu hirsute-updates Release' does not have a Release file.
E: The repository 'http://archive.ubuntu.com/ubuntu hirsute-backports Release' does not have a Release file.
The command '/bin/sh -c apt update --no-install-recommends -y -q && apt remove --no-install-recommends -y --allow-remove-essential -q bash' returned a non-zero code: 100
make: *** [Makefile.docker:17: base-image-drivemgr] Error 100

[yurkov-anton]

Need to cherry-pick to release-1.1 branch