Change:
(fetchNuGet { pname = "Microsoft.CodeAnalysis.CSharp.Scripting"; version = "3.8.0"; sha256 = "0w0yx0lpg54iw5jazqk46h48gx43ij32gwac8iywdj6kxfxm03vw"; }) (fetchNuGet { pname = "Microsoft.CodeAnalysis.Scripting.Common"; version = "3.8.0"; sha256 = "0hjgxcsj5zy27lqk0986m59n5dbplx2vjjla2lsvg4bwg8qa7bpk"; }) (fetchNuGet { pname = "Microsoft.CSharp"; version = "4.3.0"; sha256 = "0gw297dgkh0al1zxvgvncqs0j15lsna9l1wpqas4rflmys440xvb"; }) <del> (fetchNuGet { pname = "Microsoft.Identity.Client"; version = "4.54.0"; sha256 = "0p4msajlfbc536qpfnhz2w81rmwgwivfbhdyfk3d198vbadv8zlq"; }) (fetchNuGet { pname = "Microsoft.Identity.Client.Extensions.Msal"; version = "2.28.0"; sha256 = "1z2irqbjqxawyxq2778bcjbj0x8m63dh3lj5m04knq48wl4wh40x"; }) (fetchNuGet { pname = "Microsoft.IdentityModel.Abstractions"; version = "6.22.0"; sha256 = "06495i2i9cabys4s0dkaz0rby8k47gy627v9ivp7aa3k6xmypviz"; }) </del> <ins> (fetchNuGet { pname = "Microsoft.Identity.Client"; version = "4.60.3"; sha256 = "065iifhffri8wc5i4nfbnkzjrvflav9v5bfkwvmax8f35rks1mnn"; }) (fetchNuGet { pname = "Microsoft.Identity.Client.Extensions.Msal"; version = "4.60.3"; sha256 = "19l92ynvrhb76r0zpj8qhyymxgz45knyhdqr6za4s7rzbssibi08"; }) (fetchNuGet { pname = "Microsoft.IdentityModel.Abstractions"; version = "6.35.0"; sha256 = "0i6kdvqdbzynzrr4g5idx4ph4ckggsbsy0869lwa10fhmyxrh73g"; }) </ins> (fetchNuGet { pname = "Microsoft.NETCore.Platforms"; version = "1.1.0"; sha256 = "08vh1r12g6ykjygq5d3vq09zylgb84l63k49jc4v8faw9g93iqqm"; }) (fetchNuGet { pname = "Microsoft.NETCore.Platforms"; version = "2.1.2"; sha256 = "1507hnpr9my3z4w1r6xk5n0s1j3y6a2c2cnynj76za7cphxi1141"; }) <del> (fetchNuGet { pname = "Microsoft.NETCore.Platforms"; version = "5.0.0"; sha256 = "0mwpwdflidzgzfx2dlpkvvnkgkr2ayaf0s80737h4wa35gaj11rc"; }) </del> (fetchNuGet { pname = "Microsoft.NETCore.Targets"; version = "1.1.0"; sha256 = "193xwf33fbm0ni3idxzbr5fdq3i2dlfgihsac9jj7whj0gd902nh"; }) <del> (fetchNuGet { pname = "Microsoft.Win32.SystemEvents"; version = "6.0.0"; sha256 = "0c6pcj088g1yd1vs529q3ybgsd2vjlk5y1ic6dkmbhvrp5jibl9p"; }) </del> (fetchNuGet { pname = "runtime.any.System.Collections"; version = "4.3.0"; sha256 = "0bv5qgm6vr47ynxqbnkc7i797fdi8gbjjxii173syrx14nmrkwg0"; }) (fetchNuGet { pname = "runtime.any.System.Globalization"; version = "4.3.0"; sha256 = "1daqf33hssad94lamzg01y49xwndy2q97i2lrb7mgn28656qia1x"; }) (fetchNuGet { pname = "runtime.any.System.IO"; version = "4.3.0"; sha256 = "0l8xz8zn46w4d10bcn3l4yyn4vhb3lrj2zw8llvz7jk14k4zps5x"; })

Discussion:
Package name: git-credential-manager Latest released version: 2.5.0 <!-- Search your package here: --- Current version on the unstable channel: 2.4.1 Current version on the stable/release channel: 2.4.1 <!-- Type the name of your package and try to find an open pull request for the package If you find an open pull request, you can review it! There's a high chance that you'll have the new version right away while helping the community! --- Notify maintainers <!-- If the result shows no maintainers, tag the person that last updated the package. --Note for maintainers: Please tag this issue in your PR. Add a :+1: [reaction] to [issues you find important]. [reaction]: [issues you find important]:
In my limited knowledge of the dotnet ecosystem in Nixpkgs, this may be currently blocked by and I'll continue to look into this though
opened a pr for the update: