chore(cspell): add derated and calcsize to the workspace dictionary

Unblocks pre-commit on this branch - both are genuine words (derate's
past tense, already listed; struct.calcsize, stdlib) that just hadn't
been added yet.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

Author: chalfontchubby

.cspell/custom-dictionary-workspace.txt

@@ -67,6 +67,7 @@ brickatius
 bwignore
 byok
 cadata
+calcsize
 calib
 Cantarell
 cbat
@@ -139,6 +140,7 @@ dedupe
 dend
 denorm
 derate
+derated
 derating
 desync
 desynced