bump vessel (#415)

Also needs an `ubuntu` bump, due to the `package-set` dependency on a more recent `GLIBC` version.

Fixes #414

Author: ggreif

.github/workflows/ci.yml

@@ -8,13 +8,13 @@ on:
 
 # Remember to update me in package-set.yml as well
 env:
-  vessel_version: "v0.6.3"
+  vessel_version: "v0.6.4"
   moc_version: "0.7.0"
 
 jobs:
   tests:
     if: github.ref != 'refs/heads/next-moc' && github.base_ref != 'refs/heads/next-moc'
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-22.04
     steps:
     - uses: actions/checkout@v2
     - name: Check if Git tag exists

.github/workflows/package-set.yml

@@ -7,12 +7,12 @@ on:
   pull_request:
 
 env:
-  vessel_version: "v0.6.3"
+  vessel_version: "v0.6.4"
   moc_version: "0.7.0"
 
 jobs:
   verify:
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-22.04
     steps:
     - name: Checking out motoko-base
       uses: actions/checkout@v2