Change:
(fetchNuGet { pname = "Azure.Deployments.Expression"; version = "1.0.1243.1"; sha256 = "1shk9amp9d3v6lbf2s0j1fxf5xm468fvphhnni95v6w2cpv1fdv8"; }) (fetchNuGet { pname = "Azure.Deployments.Internal.GenerateNotice"; version = "0.1.38"; sha256 = "00jzm0c1ch24mh50hqmzs2jxda929zg1j1dgnhs5gbsyk7zjlvrd"; }) (fetchNuGet { pname = "Azure.Deployments.Templates"; version = "1.0.1243.1"; sha256 = "11glwwxq9xzi3vrnqx833dry9n6ykspf6gfab0g23d8fygd5d2rf"; }) <del> (fetchNuGet { pname = "Azure.Identity"; version = "1.11.2"; sha256 = "1zb18p50l24nr9v0srywqq5cx6xbyrlcib1i244z9vmi1qkjia2h"; }) </del> <ins> (fetchNuGet { pname = "Azure.Identity"; version = "1.11.3"; sha256 = "1hxjr7np25b3pr2z8vnkq6v4dvmrd7brm8zfz2qggvpqr48yyzxf"; }) </ins> (fetchNuGet { pname = "Azure.ResourceManager"; version = "1.11.1"; sha256 = "0vfp2rs4r9x3zkvw0za8q6xz3rrb8nywjd1137rpbpy0zx7qnbry"; }) <del> (fetchNuGet { pname = "Azure.ResourceManager.Resources"; version = "1.7.2"; sha256 = "1cw732wpixh4vrlznc70ld3d1hrw6smk57ar8imh4l7jvd9fn041"; }) </del> <ins> (fetchNuGet { pname = "Azure.ResourceManager.Resources"; version = "1.7.3"; sha256 = "1nlaammdg10xyq7g0kig093l6nl1fxn2yk6dbc7xqagfmdnkbx29"; }) </ins> (fetchNuGet { pname = "coverlet.collector"; version = "6.0.2"; sha256 = "0fll8yssdzi2wv8l26qz2zl0qqrp5nlbdqxjwfh5p356nd991m1d"; }) (fetchNuGet { pname = "FluentAssertions"; version = "6.12.0"; sha256 = "04fhn67930zv3i0d8xbrbw5vwz99c83bbvgdwqiir55vw5xlys9c"; }) (fetchNuGet { pname = "Humanizer.Core"; version = "2.14.1"; sha256 = "1ai7hgr0qwd7xlqfd92immddyi41j3ag91h3594yzfsgsy6yhyqi"; }) (fetchNuGet { pname = "IPNetwork2"; version = "2.6.598"; sha256 = "03nxkiwy1bxgpv5n1lfd06grdyjc10a3k9gyc04rhzysjsswiy0l"; }) (fetchNuGet { pname = "JetBrains.Annotations"; version = "2023.3.0"; sha256 = "0vp4mpn6gfckn8grzjm1jxlbqiq2fglm2rk9wq787adw7rxs8k7w"; }) <del> (fetchNuGet { pname = "Json.More.Net"; version = "2.0.1.1"; sha256 = "0i6w5n075qhawqr832hl8bzsdspwkfkmfnnv94c9ilq06srvy1gc"; }) </del> (fetchNuGet { pname = "Json.More.Net"; version = "2.0.1.2"; sha256 = "1fzw9d55hvynrwz01gj0xv6ybjm7nsrm2vxqy6d15wr75w3pyyky"; }) <del> (fetchNuGet { pname = "JsonPatch.Net"; version = "3.0.0.2"; sha256 = "1pi7qvjpndgxiipn21hbqf0f5ff1rijhqkcjag8pg3lcyrlm1vnl"; }) (fetchNuGet { pname = "JsonPath.Net"; version = "1.0.1.2"; sha256 = "0br6k35mwc1nisvma5izpig5mc8390fly12sics6yi82xyvhgqx5"; }) (fetchNuGet { pname = "JsonPointer.Net"; version = "4.0.1.3"; sha256 = "06yvdiwz4j8rg42wlvlflaiq2qyhcm5r3x7gczjvfihfsydvj09f"; }) </del> <ins> (fetchNuGet { pname = "JsonPatch.Net"; version = "3.1.0"; sha256 = "1dq9wl2xvkq8yplq1l9qknfj4jb8824kv8szbjcvnjpn44x8xw3f"; }) (fetchNuGet { pname = "JsonPath.Net"; version = "1.1.0"; sha256 = "0jn5k2iwr0q8cii63nzxr4m54zrpgd4q9iyx8jghq7xisshqy08m"; }) (fetchNuGet { pname = "JsonPointer.Net"; version = "5.0.0"; sha256 = "0rwxhyf2brw5x56pndfyxpi8qawx7jv9xsbbhyr9873jj8g9f9rq"; }) </ins> (fetchNuGet { pname = "MessagePack"; version = "2.5.108"; sha256 = "0cnaz28lhrdmavnxjkakl9q8p2yv8mricvp1b0wxdfnz8v41gwzs"; }) (fetchNuGet { pname = "MessagePack.Annotations"; version = "2.5.108"; sha256 = "0nb1fx8dwl7304kw0bc375bvlhb7pg351l4cl3vqqd7d8zqjwx5v"; }) (fetchNuGet { pname = "Microsoft.ApplicationInsights"; version = "2.21.0"; sha256 = "1q034jbqkxb8lddkd0ijp0wp0ymnnf3bg2mjpay027zv7jswnc4x"; })

Discussion:
update script errors when executed as: Logs: -shell --argstr package bicep logs at: Update script should not error. It should update package. An update for bicep 0.28.1 is available. CC
Error looks like a red herring, I see it during successful updates. Seems like a problem with a dependency version in that release. I was able to run it on a newer commit after they bump dependencies. When you run the fetch-deps I see this on that release: