manifests/fedora-ostree-tarball: update to the new structure

This commit changes this manifest to use the new fedora-vars.ipp and
fedora-build-v2.ipp infrastructure to remove all hardcoded Fedora versions.

test/data/manifests/fedora-ostree-tarball.mpp.yaml

@@ -1,26 +1,28 @@
 version: '2'
 pipelines:
+  - mpp-import-pipelines:
+      path: fedora-vars.ipp.yaml
   - mpp-import-pipeline:
-      path: f34-build-v2.json
+      path: fedora-build-v2.ipp.yaml
       id: build
-    runner: org.osbuild.fedora34
+    runner:
+      mpp-format-string: org.osbuild.fedora{release}
   - name: ostree-tree
     build: name:build
     stages:
       - type: org.osbuild.rpm
         options:
           gpgkeys:
-            - "-----BEGIN PGP PUBLIC KEY BLOCK-----\n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\n=QWRO\n-----END PGP PUBLIC KEY BLOCK-----\n"
+            mpp-eval: gpgkeys
         inputs:
           packages:
             type: org.osbuild.files
             origin: org.osbuild.source
             mpp-depsolve:
-              architecture: x86_64
-              module-platform-id: f34
+              architecture: $arch
+              module-platform-id: $module_platform_id
               repos:
-                - id: default
-                  baseurl: https://rpmrepo.osbuild.org/v2/mirror/public/f34/f34-x86_64-fedora-20210512/
+                mpp-eval: repos
               packages:
                 - '@cloud-server-environment'
                 - chrony
@@ -61,8 +63,10 @@ pipelines:
             references:
               - name:ostree-tree
         options:
-          ref: fedora/x86_64/osbuild
-          os_version: '34'
+          ref:
+            mpp-format-string: '{ref}'
+          os_version:
+            mpp-format-string: '{release}'
   - name: tarball-tree
     build: name:build
     stages:
@@ -78,7 +82,8 @@ pipelines:
             origin: org.osbuild.pipeline
             references:
               name:ostree-commit:
-                ref: fedora/x86_64/osbuild
+                ref:
+                  mpp-format-string: '{ref}'
   - name: tarball
     build: name:build
     stages: