Potential dependancy upgrades

[teolemon]

• _fe_analyzer_shared 7.0.0 (16.0.0 available)
• analyzer 0.39.17 (1.0.0 available)
• archive 2.0.13 (3.0.0 available)
• args 1.6.0 (2.0.0 available)
• async 2.5.0-nullsafety.1 (2.5.0 available)
• boolean_selector 2.1.0-nullsafety.1 (2.1.0 available)
• browser_launcher 0.1.7 (0.1.8 available)
• build_daemon 2.1.4 (2.1.7 available)
• built_collection 4.3.2 (5.0.0 available)
• built_value 7.1.0 (8.0.0 available)
• charcode 1.2.0-nullsafety.1 (1.2.0 available)
• checked_yaml 1.0.2 (1.0.4 available)
• cli_util 0.2.0 (0.3.0 available)
• clock 1.1.0-nullsafety.1 (1.1.0 available)
• collection 1.15.0-nullsafety.3 (1.15.0 available)
• completion 0.2.2 (0.2.3 available)
• convert 2.1.1 (3.0.0 available)
• coverage 0.14.1 (0.15.2 available)
• crypto 2.1.5 (3.0.0 available)
• csslib 0.16.2 (0.17.0 available)
• dds 1.4.0 (1.7.5 available)
• devtools 0.8.0+3 (0.9.7+3 available)
• devtools_server 0.8.0+3 (0.9.7+3 available)
• devtools_shared 0.8.0+3 (0.9.7+3 available)
• dwds 6.0.0 (8.0.3 available)
• fake_async 1.2.0-nullsafety.1 (1.2.0 available)
• file 6.0.0-nullsafety.2 (6.0.0 available)
• file_testing 2.1.0 (3.0.0 available)
• fixnum 0.10.11 (1.0.0 available)
• flutter_template_images 1.0.1
• glob 1.2.0 (2.0.0 available)
• html 0.14.0+3 (0.15.0 available)
• http 0.12.2 (0.13.0 available)
• http_multi_server 2.2.0
• http_parser 3.1.4 (4.0.0 available)
• intl 0.16.1 (0.17.0 available)
• io 0.3.4
• js 0.6.3-nullsafety.1 (0.6.3 available)
• json_annotation 3.1.0 (4.0.0 available)
• json_rpc_2 2.2.2
• logging 0.11.4 (1.0.0 available)
• matcher 0.12.10-nullsafety.1 (0.12.10 available)
• meta 1.3.0-nullsafety.3 (1.3.0 available)
• mime 0.9.7 (1.0.0 available)
• mockito 4.1.1 (4.1.4 available)
• multicast_dns 0.2.2
• mustache_template 1.0.0+1
• native_stack_traces 0.3.7
• node_interop 1.1.1 (1.2.1 available)
• node_io 1.1.1 (1.2.0 available)
• node_preamble 1.4.12 (1.4.13 available)
• package_config 1.9.3 (2.0.0 available)
• path 1.8.0-nullsafety.1 (1.8.0 available)
• pedantic 1.10.0-nullsafety.1 (1.10.0 available)
• petitparser 3.1.0
• platform 3.0.0-nullsafety.2 (3.0.0 available)
• pool 1.5.0-nullsafety.1 (1.5.0 available)
• process 4.0.0-nullsafety.2 (4.1.0 available)
• pub_semver 1.4.4 (2.0.0 available)
• pubspec_parse 0.1.5 (0.1.8 available)
• quiver 2.1.3 (2.1.5 available)
• shelf 0.7.5 (1.0.0 available)
• shelf_packages_handler 2.0.0 (2.0.1 available)
• shelf_proxy 0.1.0+7
• shelf_static 0.2.8 (0.2.9+2 available)
• shelf_web_socket 0.2.3 (0.2.4 available)
• source_map_stack_trace 2.1.0-nullsafety.2 (2.1.0 available)
• source_maps 0.10.10-nullsafety.1 (0.10.10 available)
• source_span 1.8.0-nullsafety.2 (1.8.1 available)
• sse 3.5.0 (3.8.1 available)
• stack_trace 1.10.0-nullsafety.1 (1.10.0 available)
• stream_channel 2.1.0-nullsafety.1 (2.1.0 available)
• stream_transform 1.2.0 (2.0.0 available)
• string_scanner 1.1.0-nullsafety.1 (1.1.0 available)
• sync_http 0.2.0 (0.3.0 available)
• term_glyph 1.2.0-nullsafety.1 (1.2.0 available)
• test 1.16.0-nullsafety.5 (1.16.2 available)
• test_api 0.2.19-nullsafety.2 (0.2.19 available)
• test_core 0.3.12-nullsafety.5 (0.3.13 available)
• typed_data 1.3.0-nullsafety.3 (1.3.0 available)
• usage 3.4.2 (4.0.0 available)
• uuid 2.2.2
• vm_service 4.2.0 (6.0.1 available)
• vm_snapshot_analysis 0.5.5
• watcher 0.9.7+15 (1.0.0 available)
• web_socket_channel 1.1.0 (1.2.0 available)
• webdriver 2.1.2 (3.0.0 available)
• webkit_inspection_protocol 0.7.3 (0.7.5 available)
• xml 4.5.1
• yaml 2.2.1 (3.0.0 available)

[monsieurtanuki]

@teolemon I think all the nullsafety versions are only available with dart beta/preview version 2.12.
I suggested in openfoodfacts/openfoodfacts-dart#90 to play it safe, and wait until dart 2.12 is stable.
That would probably also mean migrate smoothie to nullsafety.

[M123-dev]

Every dependancy except for image_picker and flutter_native_splash are upgraded in #225. Both of them have conflicts with openfoodfacts-dart.