tests: Bump dependency on latest swh-core

This also modifies the test dataset to filename with url decoded filename.
As this is what the latest pytest plugin requires.

requirements-swh.txt

@@ -1,2 +1,2 @@
-swh.core >= 0.0.75
+swh.core >= 0.0.77
 swh.scheduler >= 0.0.58

swh/lister/bitbucket/tests/data/https_api.bitbucket.org/response.json

@@ -1 +1 @@
-2.0_repositories,after=1970-01-01T00%3A00%3A00%2B00%3A00,pagelen=100
+2.0_repositories,after=1970-01-01T00:00:00+00:00,pagelen=100

swh/lister/npm/tests/data/https_replicate.npmjs.com/api_response.json

@@ -1 +1 @@
-_all_docs,startkey=%22%22,limit=1001
+_all_docs,startkey="",limit=1001

swh/lister/npm/tests/test_lister.py

@@ -20,7 +20,7 @@ logger = logging.getLogger(__name__)
 
 class NpmListerTester(HttpListerTesterBase, unittest.TestCase):
     Lister = NpmLister
-    test_re = re.compile(r'^.*/_all_docs\?startkey=%22(.+)%22.*')
+    test_re = re.compile(r'^.*/_all_docs\?startkey="(.+)".*')
     lister_subdir = 'npm'
     good_api_response_file = 'data/replicate.npmjs.com/api_response.json'
     bad_api_response_file = 'data/api_empty_response.json'