`apt-get install bosh-bootloader` => failed `/usr/bin/bbl`

[ericpromislow]

See https://github.com/cloudfoundry/capi-dockerfiles/blob/f92971f13608e9af55a8f605e6947cc3d2314e9f/bbr-run-drats/Dockerfile#L17 for the context. Today this started producing a /usr/bin/bbl file with the following contents:

<?xml version="1.0" encoding="UTF-8"?>
<Error>
    <Code>NoSuchKey</Code>
    <Message>The specified key does not exist.</Message>
    <Key>KEY AVAILABLE ON REQUEST</Key>
    <RequestId>REQUESTID AVAILABLE ON REQUEST</RequestId>
    <HostId>HOSTID (BASE64) AVAILABLE ON REQUEST/HostId>
</Error>

Lines https://github.com/cloudfoundry/capi-dockerfiles/blob/f92971f13608e9af55a8f605e6947cc3d2314e9f/bbr-run-drats/Dockerfile#L23-L26 are a temporary workaround to install a working bbl