message: Actions: Use env file instead of (deprecated) set-env
diff: @@ -58,10 +58,10 @@ jobs:
  - name: Use specified FiloSottile/age commit
  if: github.event.action == 'age-interop-request'
  - run: echo ::set-env name=AGE_REF::${{ github.event.client_payload.sha }}
  + run: echo "AGE_REF=${{ github.event.client_payload.sha }}" >> $GITHUB_ENV
  - name: Use FiloSottile/age current master
  if: github.event.action != 'age-interop-request'
  - run: echo ::set-env name=AGE_REF::refs/heads/master
  + run: echo "AGE_REF=refs/heads/master" >> $GITHUB_ENV
  - name: Check out FiloSottile/age
  uses: actions/checkout@v2
  @@ -123,7 +123,7 @@ jobs:
  run: echo "AGE-SECRET-KEY-1TRYTV7PQS5XPUYSTAQZCD7DQCWC7Q77YJD7UVFJRMW4J82Q6930QS70MRX" >key.txt
  - name: Set the corresponding age x25519 recipient
  if: matrix.recipient == 'x25519'
  - run: echo "::set-env name=AGE_PUBKEY::age1y8m84r6pwd4da5d45zzk03rlgv2xr7fn9px80suw3psrahul44ashl0usm"
  + run: echo "AGE_PUBKEY=age1y8m84r6pwd4da5d45zzk03rlgv2xr7fn9px80suw3psrahul44ashl0usm" >> $GITHUB_ENV
  - name: Generate an ssh-rsa key
  if: matrix.recipient == 'ssh-rsa'
  run: ssh-keygen -t rsa -N "" -f key.txt
  @@ -133,7 +133,7 @@ jobs:
  - name: Set the corresponding SSH recipient
  if: matrix.recipient == 'ssh-rsa' || matrix.recipient == 'ssh-ed25519'
  # age doesn't currently support files containing lists of recipients
  - run: echo "::set-env name=AGE_PUBKEY::$(cat key.txt.pub)"
  + run: echo "AGE_PUBKEY=$(cat key.txt.pub)" >> $GITHUB_ENV
  - name: Store key.txt in case we need it
  uses: actions/upload-artifact@v1
  with:
  