Merge bitcoin/bitcoin#24330: doc: release-process: Specify remote name in "git fetch"

876b91c release-process: Specify remote name in "git fetch" (Jeremy Rand)

Pull request description:

  Avoids "does not appear to be a git repository" error.

  Fixes #24329

ACKs for top commit:
  shaavan:
    ACK 876b91c

Tree-SHA512: 0ba23cd51ca761823cab19200b69f07a5c23e1a501114e0af73b24195c306cebb789e187dd436f7b3895a10de31e41276bb2fc4b217cd152247d2704e44bc8da

Author: MarcoFalke

doc/release-process.md

@@ -97,7 +97,7 @@ Checkout the Bitcoin Core version you'd like to build:
 pushd ./bitcoin
 SIGNER='(your builder key, ie bluematt, sipa, etc)'
 VERSION='(new version without v-prefix, e.g. 0.20.0)'
-git fetch "v${VERSION}"
+git fetch origin "v${VERSION}"
 git checkout "v${VERSION}"
 popd
 ```