Tag the inline-expectations test queries as inline-expectation-test

codeql test run --learn recognises a postprocess query as an inline-expectation
test, and so may rewrite the inline `// $ ...` comments in its source, by the
`@tags inline-expectation-test` on the query. Add that tag to every language's
InlineExpectationsTestQuery.ql so their tests are learnable; without it --learn
declines to edit their source and fails, since it cannot group the query with
its siblings into a shared-source cohort.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 1adfa307-c48e-43f5-94e3-8286e4a8c083

Author: d10c

cpp/ql/lib/utils/test/InlineExpectationsTestQuery.ql

@@ -1,5 +1,6 @@
 /**
  * @kind test-postprocess
+ * @tags inline-expectation-test
  */
 
 private import cpp

csharp/ql/lib/utils/test/InlineExpectationsTestQuery.ql

@@ -1,5 +1,6 @@
 /**
  * @kind test-postprocess
+ * @tags inline-expectation-test
  */
 
 private import csharp

go/ql/lib/utils/test/InlineExpectationsTestQuery.ql

@@ -1,5 +1,6 @@
 /**
  * @kind test-postprocess
+ * @tags inline-expectation-test
  */
 
 private import go

java/ql/lib/utils/test/InlineExpectationsTestQuery.ql

@@ -1,5 +1,6 @@
 /**
  * @kind test-postprocess
+ * @tags inline-expectation-test
  */
 
 private import java

javascript/ql/lib/utils/test/InlineExpectationsTestQuery.ql

@@ -1,5 +1,6 @@
 /**
  * @kind test-postprocess
+ * @tags inline-expectation-test
  */
 
 private import javascript

python/ql/lib/utils/test/InlineExpectationsTestQuery.ql

@@ -1,5 +1,6 @@
 /**
  * @kind test-postprocess
+ * @tags inline-expectation-test
  */
 
 private import python

ql/ql/src/utils/test/InlineExpectationsTestQuery.ql

@@ -1,5 +1,6 @@
 /**
  * @kind test-postprocess
+ * @tags inline-expectation-test
  */
 
 private import ql

ruby/ql/lib/utils/test/InlineExpectationsTestQuery.ql

@@ -1,5 +1,6 @@
 /**
  * @kind test-postprocess
+ * @tags inline-expectation-test
  */
 
 private import ruby

rust/ql/lib/utils/test/InlineExpectationsTestQuery.ql

@@ -1,5 +1,6 @@
 /**
  * @kind test-postprocess
+ * @tags inline-expectation-test
  */
 
 private import rust

swift/ql/lib/utils/test/InlineExpectationsTestQuery.ql

@@ -1,5 +1,6 @@
 /**
  * @kind test-postprocess
+ * @tags inline-expectation-test
  */
 
 private import swift