Merge bitcoin/bitcoin#27664: docs: fix spelling errors

e9dcac1 add `lief` to `spelling.ignore-words` (brunoerg)
258f930 test: fix spelling in `interface_usdt_utxocache` (brunoerg)

Pull request description:

  Add `lief` to `spelling.ignore-words` since it's the name of a Python lib and fix spelling error in `interface_usdt_utxocache` (s/eariler/earlier)

ACKs for top commit:
  fanquake:
    ACK e9dcac1

Tree-SHA512: f42cdbb74144c5d289d70bb9bac1179650bb32594678e15f4e18e4b2f68009999d60ff69494d4e68650d82fc1838e67515ed2f922ee84db98735ef906911ec40

Author: fanquake

test/functional/interface_usdt_utxocache.py

@@ -363,7 +363,7 @@ def handle_utxocache_flush(_, data, __):
         bpf["utxocache_flush"].open_perf_buffer(handle_utxocache_flush)
 
         self.log.info("stop the node to flush the UTXO cache")
-        UTXOS_IN_CACHE = 2 # might need to be changed if the eariler tests are modified
+        UTXOS_IN_CACHE = 2 # might need to be changed if the earlier tests are modified
         # A node shutdown causes two flushes. One that flushes UTXOS_IN_CACHE
         # UTXOs and one that flushes 0 UTXOs. Normally the 0-UTXO-flush is the
         # second flush, however it can happen that the order changes.

test/lint/spelling.ignore-words.txt

@@ -11,6 +11,7 @@ hights
 inflight
 invokable
 keypair
+lief
 mor
 nd
 nin