CLDR-17202 kbd: updates to bengali (#3564)

.github/workflows/keyboard.yml

@@ -34,7 +34,7 @@ jobs:
             ${{ runner.os }}-nodekbd-
             nodekbd-
       - name: Install kmc
-        run: npm install -g @keymanapp/kmc@alpha
+        run: npm install -g @keymanapp/kmc@beta
       - name: Compile Keyboards
         run: kmc --error-reporting build keyboards/3.0/*.xml
       - name: Run Kbd Charts

keyboards/3.0/bn.xml

@@ -34,7 +34,7 @@
         <key id="0" output="০" />
 
         <!-- special keys and marks -->
-        <key id="au-lenghtener" output="\m{A}" />
+        <key id="au-lengthener" output="\m{A}" />
         <key id="candrabindu" output="\u{0981}" /> <!-- n̐  -->
         <key id="hasant" output="\u{09CD}" />
         <key id="more" output="\m{q}" /> <!-- 'additional characters' -->
@@ -101,15 +101,15 @@
             <row
                 keys="ṃ bang at hash dollar percent caret amp asterisk open-paren close-paren underscore plus" />
             <row keys="gap ña ai ṛ tha ẏa ū ī au pha open-curly close-curly pipe" />
-            <row keys="au-lenghtener sha dha ṭha gha gap jha kha gap colon double-quote" />
+            <row keys="au-lengthener sha dha ṭha gha gap jha kha gap colon double-quote" />
             <row keys="gap vis-hasant cha ḍha bha ṇa ṅa open-angle nukta question" />
             <row keys="space" />
         </layer>
     </layers>
 
     <transforms type="simple">
         <transformGroup>
-            <transform from="\u{09C7}\m{A}" to="\u{09CC}" /> <!-- E + au-lenghtener = AU -->
+            <transform from="\u{09C7}\m{A}" to="\u{09CC}" /> <!-- E + au-lengthener = AU -->
             <!-- <transform from="\u{09C7}\u{09BE}" to="\u09CB" /> --> <!-- E + A = O This is handled by normalization. -->
 
             <!-- these suport the 'q' key -->