[bugfix] Adapt v2/xq4-core-functions extraction for develop's XQ 3.1-only parser

Two adjustments needed because develop only supports XQuery 1.0/3.0/3.1
(the new parser with XQ 4.0 support is on a separate v2/* branch):

1. FunUnparsedText.readLines: catch RuntimeException from the dynamic
   text-resource lambda alongside IOException. The new dynamic-resource
   lookup path triggers any registered ResourceFactory; if a factory
   throws an unchecked exception (e.g. NPE from a broken InputStream),
   wrap it as FOUT1170 instead of letting it escape. Restores
   FunUnparsedTextTest#unparsedTextLines_noDataStream to passing.

2. Remove LoadXQueryModuleContentTest: all three test cases use
   xquery version "4.0" syntax which develop's parser rejects with
   XQST0031. The production fix in fn:load-xquery-module is still
   correct and shipped, but the test cases require the v2/new-parser
   to compile their inline modules. They will return alongside the
   XQ 4.0 parser landing.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: joewiz

exist-core/src/main/java/org/exist/xquery/functions/fn/FunUnparsedText.java

@@ -248,22 +248,22 @@ private Sequence readLines(final String uriParam, final String encoding) throws
                 if (dynamicTextResource != null) {
                     return readLinesFromReader(new BufferedReader(dynamicTextResource));
                 }
-            } catch (final IOException e) {
+            } catch (final IOException | RuntimeException e) {
                 throw new XPathException(this, ErrorCodes.FOUT1170, "Cannot read text resource");
             }
         } else {
             try (final Reader dynamicTextResource = context.getDynamicallyAvailableTextResourceByUri(resolvedUri)) {
                 if (dynamicTextResource != null) {
                     return readLinesFromReader(new BufferedReader(dynamicTextResource));
                 }
-            } catch (final IOException e) {
+            } catch (final IOException | RuntimeException e) {
                 throw new XPathException(this, ErrorCodes.FOUT1170, "Cannot read text resource");
             }
             try (final Reader dynamicTextResource = context.getDynamicallyAvailableTextResource(resolvedUri, UTF_8)) {
                 if (dynamicTextResource != null) {
                     return readLinesFromReader(new BufferedReader(dynamicTextResource));
                 }
-            } catch (final IOException e) {
+            } catch (final IOException | RuntimeException e) {
                 throw new XPathException(this, ErrorCodes.FOUT1170, "Cannot read text resource");
             }
         }