feat: add retry for getting compute name from az metadata

[kristina-solovyova]

Resolves issue: https://wekaio.atlassian.net/browse/CLOUD-1959

Root cause:

++ curl -s -H Metadata:true --noproxy '*' 'http://169.254.169.254/metadata/instance?api-version=2021-02-01'
++ jq .compute.name
+ compute_name=
++ echo ''
++ cut -c2-
++ rev
++ cut -c2-
++ rev
+ compute_name=
+ retry=0
+ curl 'https://irudp1-irudp1-function-app.azurewebsites.net/api/deploy?code=XXX-BQ==' --fail -H Content-Type:application/json -d '{"name": ":irudp1-irudp1-backend000004"}'

And from the host via ssh:

curl -s -H Metadata:true --noproxy '*' 'http://169.254.169.254/metadata/instance?api-version=2021-02-01' | jq .compute.name
"irudp1-irudp1-vmss_4"