add missing time units (nsecs, usecs, msecs) and anchor to v0.11.0

Fixes 2 test failures caused by unrecognized time units. Remaining
12 failures (1%) are a pre-existing time_unit ambiguity where single-
letter units like 's' conflict with identifiers across newlines.

Author: remifan

tree-sitter-lf/grammar.js

@@ -607,7 +607,8 @@ module.exports = grammar({
 
     time_unit: ($) =>
       choice(
-        'nsec', 'usec', 'msec', 'sec', 'secs', 'second', 'seconds',
+        'nsec', 'nsecs', 'usec', 'usecs', 'msec', 'msecs',
+        'sec', 'secs', 'second', 'seconds',
         'min', 'mins', 'minute', 'minutes',
         'hour', 'hours',
         'day', 'days',

tree-sitter-lf/src/grammar.json

@@ -3486,14 +3486,26 @@
           "type": "STRING",
           "value": "nsec"
         },
+        {
+          "type": "STRING",
+          "value": "nsecs"
+        },
         {
           "type": "STRING",
           "value": "usec"
         },
+        {
+          "type": "STRING",
+          "value": "usecs"
+        },
         {
           "type": "STRING",
           "value": "msec"
         },
+        {
+          "type": "STRING",
+          "value": "msecs"
+        },
         {
           "type": "STRING",
           "value": "sec"

tree-sitter-lf/src/node-types.json

@@ -2326,6 +2326,10 @@
     "type": "msec",
     "named": false
   },
+  {
+    "type": "msecs",
+    "named": false
+  },
   {
     "type": "mutable",
     "named": false
@@ -2350,6 +2354,10 @@
     "type": "nsec",
     "named": false
   },
+  {
+    "type": "nsecs",
+    "named": false
+  },
   {
     "type": "output",
     "named": false
@@ -2458,6 +2466,10 @@
     "type": "usec",
     "named": false
   },
+  {
+    "type": "usecs",
+    "named": false
+  },
   {
     "type": "watchdog",
     "named": false