Update to aas-core-meta, codegen, testgen 899add1, 4c01ed64, a8c4155e (#43)

Update to aas-core-meta, codegen, testgen 899add1, 4c01ed64, a8c4155e
We update the development requirements to and re-generate everything
with:
* [aas-core-meta 899add1],
* [aas-core-codegen 4c01ed64] and
* [aas-core3.0-testgen a8c4155e].

Notably, this propagates a fix for references index constraint where
indices in references were erroneously assumed to be positive integers.

[aas-core-meta 899add1]: aas-core-works/aas-core-meta@899add1
[aas-core-codegen 4c01ed64]: aas-core-works/aas-core-codegen@4c01ed64
[aas-core3.0-testgen a8c4155e]: aas-core-works/aas-core3.0-testgen@a8c4155e

Author: empwilli

_dev_scripts/aas_core3/__init__.py

@@ -3,5 +3,5 @@
 
 This copy is necessary so that we can decouple from ``aas-core*-python`` repository.
 
-The revision of aas-core-codegen was: c77b7dc6
+The revision of aas-core-codegen was: 4c01ed64
 """

_dev_scripts/setup.py

@@ -28,8 +28,8 @@
     keywords="asset administration shell code generation industry 4.0 industrie i4.0",
     install_requires=[
         "icontract>=2.6.1,<3",
-        "aas-core-meta@git+https://github.com/aas-core-works/aas-core-meta@f2fd738#egg=aas-core-meta",
-        "aas-core-codegen@git+https://github.com/aas-core-works/aas-core-codegen@c77b7dc6#egg=aas-core-codegen",
+        "aas-core-meta@git+https://github.com/aas-core-works/aas-core-meta@899add1#egg=aas-core-meta",
+        "aas-core-codegen@git+https://github.com/aas-core-works/aas-core-codegen@4c01ed64#egg=aas-core-codegen",
     ],
     # fmt: off
     extras_require={

verification/verification.go

@@ -11665,7 +11665,9 @@ func VerifyReference(
 		aascommon.AllRange(
 			func(i int) bool {
 				return !(that.Keys()[i].Type() == aastypes.KeyTypesSubmodelElementList) ||
-					MatchesXsPositiveInteger(that.Keys()[i+1].Value())
+					MatchesXsNonNegativeInteger(
+						that.Keys()[i+1].Value(),
+					)
 			},
 			0,
 			len(that.Keys())-1,