Description of problem:

After upgrading to ACM 2.8, applications are unable to deploy with the error below  

`tls: server selected unsupported protocol version 303"`

~~~

{{I0621 11:43:59.897103 1 gitrepo.go:210] Connecting to Git server via HTTP
E0621 11:43:59.897126 1 gitrepo.go:176] no secondary channel to try
I0621 11:43:59.897134 1 gitrepo.go:294] Cloning https://github.com/kubernetes/examples into /tmp/default/sample-application-subscription-123
I0621 11:43:59.897141 1 gitrepo.go:296] cloneOptions.DestDir = /tmp/default/sample-application-subscription-123
I0621 11:43:59.897147 1 gitrepo.go:297] cloneOptions.Branch = refs/heads/master
I0621 11:43:59.897154 1 gitrepo.go:298] cloneOptions.CommitHash =
I0621 11:43:59.897160 1 gitrepo.go:299] cloneOptions.RevisionTag =
I0621 11:43:59.897165 1 gitrepo.go:300] cloneOptions.CloneDepth = 0
E0621 11:43:59.945653 1 gitrepo.go:306] Get "https://github.com/kubernetes/examples/info/refs?service=git-upload-pack": tls: server selected unsupported protocol version 303 Failed to git clone with the primary channel: Get "https://github.com/kubernetes/examples/info/refs?service=git-upload-pack": tls: server selected unsupported protocol version 303
E0621 11:43:59.945718 1 hub_git.go:475] subscription-hub-reconciler "msg"="failed to get commitID from initialDownload" "error"="Failed to clone git: https://github.com/kubernetes/examples err: Get \"https://github.com/kubernetes/examples/info/refs?service=git-upload-pack\": tls: server selected unsupported protocol version 303"}}
~~~

Version-Release number of selected component (if applicable):

ACM 2.8

How reproducible:

Everytime

Steps to Reproduce:

1. Create and deploy application
2. Application fails showing the error described above within multicluster-operators-hub-subscription 
3. ...

Actual results:

Expected results:

Additional info: