feat(b2-workflow): support link=static

Author: alandefreitas

b2-workflow/action.yml

@@ -96,10 +96,13 @@ inputs:
   shared:
     description: |
       Determines if the `link` option should be `shared` so that it creates shared libraries.
+      When the input is `true`, the `link` option is `shared`. When it is `false`, the `link` option is `static`.
       
       If the input is not specified, the action will use the value defined by the environment variable `BUILD_SHARED_LIBS`.
       
-      If the environment variable is not specified, the action will use the default value as identified by B2.
+      If the environment variable is not specified, the action will use the default value as identified by B2,
+      which sets no value for the `link` option and defaults to `shared`.
+
     required: false
     default: ''
   toolset:

b2-workflow/dist/index.js

@@ -162,8 +162,10 @@ async function main(inputs) {
     if (inputs.threading) {
         b2_args.push(`threading=${inputs.threading}`)
     }
-    if (inputs.shared) {
+    if (inputs.shared === true) {
         b2_args.push('link=shared')
+    } else if (inputs.shared === false) {
+        b2_args.push('link=static')
     }
 
     // The user can provide these options as a boolean (true/false) or as any