Fix spelling mistakes and silence false-positives newly reported by codespell

Author: cameel

scripts/codespell_ignored_lines.txt

@@ -19,3 +19,4 @@ docker run --rm -v "${OUTPUTDIR}":/tmp/output -v "${SCRIPTDIR}":/tmp/scripts:ro
 			templ("assignEnd", "end := tail");
 			templ("assignEnd", "");
         self.assertIn('401 Client Error: Unauthorized', str(manager.exception))
+        a = abd;

test/libsolidity/util/SoltestTypes.h

@@ -32,7 +32,7 @@ namespace solidity::frontend::test
 	T(Invalid, "invalid", 0)           \
 	T(EOS, "EOS", 0)                   \
 	T(Whitespace, "_", 0)              \
-	/* punctuations */                 \
+	/* punctuation */                  \
 	T(LParen, "(", 0)                  \
 	T(RParen, ")", 0)                  \
 	T(LBrack, "[", 0)                  \