vendor: Update vendored sources to igraph/igraph@622f331

fix: remove unused converage exclusion

Author: krlmlr

src/vendor/cigraph/CMakeLists.txt

@@ -143,7 +143,7 @@ if(CMAKE_PROJECT_NAME STREQUAL PROJECT_NAME AND IGRAPH_ENABLE_CODE_COVERAGE)
     # problems with them. Yes, the exclusion is correct, it refers to a nonexistent
     # directory that somehow gets into the coverage results. /Applications and
     # /Library/Developer are for macOS -- they exclude files from the macOS SDK.
-    EXCLUDE "io/*.l" "src/io/parsers/*" "io/parsers/*" "/Applications/Xcode*" "/Library/Developer/*" "examples/*" "interfaces/*" "tests/*" "vendor/pcg/*"
+    EXCLUDE "src/io/parsers/*" "io/parsers/*" "/Applications/Xcode*" "/Library/Developer/*" "examples/*" "interfaces/*" "tests/*" "vendor/pcg/*"
   )
 endif()
 

src/vendor/igraph_version.h

@@ -28,11 +28,11 @@
 
 __BEGIN_DECLS
 
-#define IGRAPH_VERSION "0.10.15-45-gae93a3a24"
+#define IGRAPH_VERSION "0.10.15-46-g622f331dc"
 #define IGRAPH_VERSION_MAJOR 0
 #define IGRAPH_VERSION_MINOR 10
 #define IGRAPH_VERSION_PATCH 15
-#define IGRAPH_VERSION_PRERELEASE "45-gae93a3a24"
+#define IGRAPH_VERSION_PRERELEASE "46-g622f331dc"
 
 IGRAPH_EXPORT void igraph_version(const char **version_string,
                                   int *major,