Merge #582: ci: add electrsd to labeler job and rename node label to bitcoind

77d388c ci: add electrsd, rename node to bitcoind, sort pr labels (Renato Britto)

Pull request description:

  Closes #579

  CI missed tagging `electrsd` PRs with `C-electrsd` label.
  Renames label node to bitcoind to match recent crate rename.

ACKs for top commit:
  tcharding:
    ACK 77d388c

Tree-SHA512: 8d9b5906ce8cc37732cd5d423996151971daedff6a15f5b3255055a55fde1772bc72b32f76efc17ced17a1ee98587b2186f219844d0e13cb42e6b3714c6f87fc

Author: tcharding

.github/workflows/pr-labeler.yml

@@ -29,10 +29,11 @@ jobs:
             const filePathsToLabels = {
               'bitcoind/': 'C-bitcoind',
               'client/': 'C-client',
+              'electrsd/': 'C-electrsd',
               'integration_test/': 'C-integration-test',
               'jsonrpc/': 'C-jsonrpc',
               'types/': 'C-types',
-              'verify/': 'C-verify'
+              'verify/': 'C-verify',
             };
 
             const labelsToAdd = new Set();