Update searx.data - update_wikidata_units.py (#3222)

Co-authored-by: dalf <dalf@users.noreply.github.com>

searx/data/wikidata_units.json

@@ -441,6 +441,7 @@
     "Q249439": "q_P",
     "Q2518569": "nSv",
     "Q253276": "mi",
+    "Q254532": "deg²",
     "Q25472681": "GB/s",
     "Q25472693": "TB/s",
     "Q25499149": "oct",
@@ -743,7 +744,7 @@
     "Q651336": "M_J",
     "Q6517513": "dag",
     "Q667419": "UK t",
-    "Q681996": "M⊕",
+    "Q681996": "M🜨",
     "Q685662": "p_P",
     "Q686163": "$",
     "Q68725821": "°Rø",
@@ -797,6 +798,7 @@
     "Q748716": "fps",
     "Q752079": "RT",
     "Q752197": "kJ/mol",
+    "Q7574000": "sp",
     "Q7672057": "TU",
     "Q777017": "dBm",
     "Q780456": "Td",