publish releases as rpm packages on SOS (#555)

We use a script in go.mk as a custom publisher to publish releases to
SOS. As with debian releases, we only keep the last 10 versions of the cli available in the bucket.

The packages can be installed on Fedora by adding a repo file `/etc/yum.repos.d/exoscale-cli.repo` with the following content:
```
[exoscale-cli-repo]
name=exocale-cli
baseurl=https://sos-ch-gva-2.exo.io/exoscale-packages/rpm/cli
enabled=1
repo_gpgcheck=1
gpgcheck=0
gpgkey=https://keys.openpgp.org/vks/v1/by-fingerprint/7100E8BFD6199CE0374CB7F003686F8CDE378D41
```

---------

Co-authored-by: Philipp Sauter <[email protected]>

.github/workflows/release.yml

@@ -42,7 +42,7 @@ jobs:
         id: get-version-tag
         shell: bash
 
-      - run: echo "linux_amd64_checksum="$(grep -P 'exoscale-cli_[0-9]+\.[0-9]+\.[0-9]_linux_amd64.tar.gz' dist/exoscale-cli_*_checksums.txt | head -n 1 | cut -c1-64) >> $GITHUB_OUTPUT
+      - run: echo "linux_amd64_checksum="$(grep -P 'exoscale-cli_[0-9]+\.[0-9]+\.[0-9]+_linux_amd64.tar.gz' dist/exoscale-cli_*_checksums.txt | head -n 1 | cut -c1-64) >> $GITHUB_OUTPUT
         id: get-linux-amd64-checksum
         shell: bash
 

.goreleaser.yml

@@ -128,10 +128,17 @@ scoops:
       branch: master
 
 publishers:
+  - name: rpms
+    env:
+      - AWS_ACCESS_KEY_ID={{ .Env.EXOSCALE_API_KEY }}
+      - AWS_SECRET_ACCESS_KEY={{ .Env.EXOSCALE_API_SECRET }}
+    ids:
+      - nfpms
+    cmd: ./go.mk/scripts/publish-rpm-artifact-to-sos.sh {{ .ArtifactPath }} exoscale-packages rpm/cli 10
   - name: aptly
     env:
       - AWS_ACCESS_KEY_ID={{ .Env.EXOSCALE_API_KEY }}
       - AWS_SECRET_ACCESS_KEY={{ .Env.EXOSCALE_API_SECRET }}
     ids:
       - nfpms
-    cmd: ./go.mk/scripts/publish-deb-artifact-to-sos.sh {{ .ArtifactPath }} exoscale-packages deb/cli 10
+    cmd: ./go.mk/scripts/publish-deb-artifact-to-sos.sh {{ .ArtifactPath }} exoscale-packages deb/cli 10 {{ .ProjectName }}