Replace s3 URIs with signed URLs for metal.server when creating the bootscript

Replace s3:// urls with signed urls for metal.server (#51)

When creating the bootscript bss will now convert s3:// urls to signed
urls. This conversion is done for the params field for the metal.server field.

For example, it will convert the following to a signed url:
'metal.server=s3://bucket/path'

It will leave other s3 uris alone. For example this will remain untouched:
'root=craycps-s3:s3://boot-images/2b63caf8'

Jira: CASMHMS-5656

v1.19.0

What's Changed

• CASMHMS-5612 Helm CT test enhancements and CVE remediation by @schooler-hpe in #47

Full Changelog: v1.18.0...v1.19.0

v1.18.0: Change HSM v1 references to v2

[1.18.0] - 2022-06-29

Changed

• Scrubbed references to HSM v1 in favor of HSM v2.

v1.17.0

Merge pull request #46 from Cray-HPE/CASMHMS-5458/coordination-for-hm…

v1.16.0

Converts RPM based ct tests to helm test.

v1.15.0 Added Referral Token

Merge pull request #43

Added the referral token

v1.14.0 Improved get boot parameters performance CASMHMS-4540

Fixed the slow rest api, get boot parameters (#42)

Made the following improvements when getting boot parameters by name,
nid, or mac.
- Changed to first look up the name directly in the etcd data. In
  most cases the request is going to be for an x name and so this
  check will be the fastest way to satisfy the request.
- Changed to use the values it gets in its initial getting of etcd
  data. The previous implementation was only using the names,
  and then re-getting the value on a per name case.
- Changed to only get the kernel and initrd data once per http
  request.
- Added an "ID to SMComponent" map for the cached state
  manager data. The previous implementation was looping
  through this data for each boot parameter entry.

Jira: CASMHMS-4540

v1.13.0

Enabled tracking of last access time for bootscript and cloud-init (u…

v1.12.0

Merge pull request #40 from Cray-HPE/feature/enable-multi-ip-support

Enable multi IP support by targeting v2 of HSM

v1.11.0 Add priority to BSS ETCD cluster

Pull in new base chart to enable priority setting of the BSS ETCD cluster.